Chronology of events:

For some events, the year is certain but the month and day are not. Example: We know only the year for the collections of Leeuwenhoek's letters published in Dutch during his lifetime.

For other events, the season or month are certain but the day is not. Example: Leeuwenhoek mentions that someone visited him "last month".

On the other hand, many events did indeed happen on the first day of a month. Example: public appointments to Delft's city offices took effect on January 1 of each year. Thus:

  • A date of January 1 in a given year may indicate that the year is certain but the month and day are not.
  • A date of 1 in a given month may indicate that the year and month are certain but the day is not.

Unless otherwise indicated, for events in England, the date given is Old Style, 10 days behind the Dutch Republic's New Style until 1700 and then 11 days behind.

Date
October 23, 1695 Antonio Magliabechi wrote Letter L-275 of 1695-10-23 to Leeuwenhoek about recent books in Latin and Italian by Italians that he thought might be of interest
October 31, 1695 Wrote Letter L-276 of 1695-10-31 to Magliabechi to acknowledge the receipt of Magliabechi's Letter L-272, to report on the books he sent and on his recent Letter L-271 to Johann Wilhelm von Pfalz-Neuburg
October 31, 1695 Wrote Letter L-277 of 1695-10-31 to Jacob Calckberner to request that he forward a package of books to Magliabechi
November 1, 1695 His Excellency Mr.... wrote Letter L-278 of sometime before November 1695 on the day he left Düsseldorf, a lost letter
November 3, 1695 Wrote Letter L-279 of 1695-11-03 to Johann Wilhelm von Pfalz-Neuburg about larvae from swan mussels, little animals in water taken out of swan mussels, and extracts from letters to Oldenburg and Brouncker about the quantity of little animals
November 5, 1695 Antonio Magliabechi wrote Letter L-280 to again praise Leeuwenhoek
December 1, 1695 Wrote Letter L-281 of 1695-12-01 to Frederik Adriaan van Reede, the dedication of the Fifth Continuation of the Letters (Vijfde Vervolg der Brieven)
December 14, 1695 Received an honorarium from the city for the Fifth Continuation of the Letters (Vijf Vervolg der Brieven)
December 22, 1695 Wrote Letter L-282 of 1695-12-22 to acknowledge the receipt of two letters by Magliabechi and to tell him once again that the books have been forwarded to him
December 28, 1695 Wrote Letter L-283 of 1695-12-28 to Hendrik van Bleyswijk about herring, their stomach worms, the food in herring stomachs, and how small fish like herring catch food
January 1, 1696 Published Antony van Leeuwenhoeks 37ste Missive, Geschreven aan (Written to) de Heer Cristopher Wren
January 1, 1696 Published Antony van Leeuwenhoeks 40ste Missive, Geschreven aan (Written to) de Heer Francois Aston
January 1, 1696 Published Arcana Naturae Microscopiorum (Nature's Mcroscopical Mysteries), 19 Letters from 28 - 52 (2nd)
January 1, 1696 Published Continuatio Epistolarum (Continuation of the Letters), Letters 53-60 (2nd)
January 1, 1696 Published Levende Dierkens (Living Animals), Letters 28 - 31, 34 - 36 (2nd)
January 1, 1696 Published Sout-figuren (Salt figures), Letters 44, 45 (2nd)
January 1, 1696 Published Vijfde Vervolg der Brieven (Fifth Continuation of the Letters), Letters 84 - 96
February 17, 1696 Hans Sloane wrote Letter L-284 of 1696-01-17 on behalf of the Royal Society to encourage Leeuwenhoek
February 20, 1696 Wrote Letter L-285 of 1696-02-20 to Frederik Adriaan van Reede about the anatomy of the body louse, especially the sexual organs and the louse's rapid reproduction, and his opposition to Jonston's and Kircher's observations on lice
March 6, 1696 Antonio Magliabechi wrote Letter L-286 to Leeuwenhoek, reporting that he finally received the copies of Arcana Naturae Detecta, one for Grand Duke Cosima III
March 8, 1696 Wrote Letter L-287 of 1696-03-08 to Nicolaas Witsen about white mace caused by vermin, a moth from a larva taken from mace, larvae and wings of the merchant grain beetle, and nutmeg; warehouses should be painted to protect spices from vermin
May 2, 1696 The Royal Society decided to resume correspondence with Leeuwenhoek
May 16, 1696 Pieter Rabus wrote Letter L-288 to Leeuwenhoek about dowsing rods
June 1, 1696 Wrote Letter L-289 of 1696-06-01 to Pieter Rabus about dowsing rods and the hazel branches used to make them, iron, and loadstone
June 5, 1696 Antonio Magliabechi wrote Letter L-290 to Leeuwenhoek about the book dedicated to him
June 9, 1696 Asked to keep safe disputed sacks of buckwheat while the magistrates heard the case
June 27, 1696 Named as renter of a garden outside the Schoolpoort
July 1, 1696 Nicolaas Witson wrote Letter L-291 of sometime before July 1696 to Leeuwenhoek about an enclosed mineral, map, and letter
July 6, 1696 Wrote Letter L-292 of 1696-07-06 to Nicolaas Witsen about his analysis of the mineral that Witsen sent with Letter L-291, ant stings, and lacquer particles on a tree that originate from the tree itself, not from ants
July 8, 1696 Antonio Magliabechi wrote Letter L-293 to Leeuwenhoek about a packet of books that had arrived
July 10, 1696 Wrote Letter L-294 of 1696-07-10 to Nicolaas Witsen about demonstrating the rotation of the earth with the aid of a glass globe filled with water in which wax particles are floating.
July 10, 1696 Wrote Letter L-295 of 1696-07-10 to the members of the Royal Society about the circulation of blood in eels; mites, figs, strawberries, and a lobster's leg; a transcription of Christiaan Huygens's Letter L-223 about the reproduction of eels
July 16, 1696 Wrote Letter L-296 of 1696-07-16 to Frederik Adriaan van Reede about the male and female sexual organs of oysters and their larvae
July 23, 1696 Wrote Letter L-297 of 1696-07-23 to Pieter Rabus honey-dew on lime-trees; moisture from vine tendrils leads to a theory on the production of lacquer in tropical trees; his Delft friend has lost the capacity to handle the dowsing-rod
July 30, 1696 Pieter Rabus wrote Letter L-298 to Leeuwenhoek, more about honey-dew and dowsing rods
August 23, 1696 Frederick Adriaan van Reede wrote Letter L-299 of 1696-08-23, a "welcome letter"
August 26, 1696 Wrote Letter L-300 of 1696-08-26 to Frederik Adriaan van Reede about plant-lice, its embryos and parasitization, black flies and their caterpillars on apple-trees, and English oysters from Zierikzee
August 28, 1696 Wrote Letter L-301 of 1696-08-28 to Antonio Magliabechi to acknowledge receipt of Letter L-293, to inquire about the reaction of the grand duke to his work, and to thank Magliabechi for sending printed matter and book news from Italy
August 29, 1696 Wrote Letter L-302 of 1696-08-29 to Hendrik van Bleyswijk about oak-wood containing beetle larvae, which appeared to be able to feed on wood, and the cause of the differences in quality of oak-wood
September 7, 1696 Wrote Letter L-303 of 1696-09-07 to thank Magliabechi for Letter L-290 of 5 June and Letter L-293 of 8 July 1696 and to request that Magliabechi spare him exaggerated praise henceforth
September 12, 1696 Wrote Letter L-304 of 1696-09-12 to Anthonie Heinsius about rennet and curd, chalk and crab's-eyes in vinegar, smoking tobacco to cure toothache, the gall-bladder and omasum of a calf, milk-clotting, and his contradiction of a physician
September 27, 1696 Wrote Letter L-305 of 1696-09-27 to Hendrik van Bleyswijk about the age of fishes, especially herring, using scales and the structure of greater weever's spine and the painfulness of its sting
October 26, 1696 Wrote Letter L-306 of 1696-10-26 to Maarten Etienne van Velden to accompany a presentation copy of his printed letters, Sesde Vervolg Der Brieven (Sixth Continuation of the Letters)
October 30, 1696 Wrote Letter L-307 of 1696-10-30 to N.N. (a gentleman in Brabant), a cover letter accompanying a copy of Sesde Vervolg der Brieven
November 6, 1696 Received an honorarium from the city for the Sixth Continuation of the Letters
November 10, 1696 A gentleman in Brabant wrote Letter L-308 of sometime in November 1696 to Leeuwenhoek about his long-held Copernican ideas
November 15, 1696 Wrote Letter L-309 of "latter part" of 1696 to Harmen van Zoelen about what I had learned from an East India Trader
December 18, 1696 Antonio Magliabechi wrote Letter L-310 to Leeuwenhoek with reports on several recent books that he thought might be of interest written in Latin by Italians
December 18, 1696 Hans Sloane wrote Letter L-311 of 1696-12-18, as instructed by the Royal Society
January 1, 1697 Gottfried Leibniz wrote Letter L-312 to Leeuwenhoek about magnets and the magnetic power of the earth
January 1, 1697 Published Continuatio Arcanorum Naturae detectorum (Continuation of Nature's Mysteries Disclosed), Letters 93 - 107
January 1, 1697 Published Sesde Vervolg der Brieven (Sixth Continuation of the Letters), Letters 97 - 107
January 1, 1697 Published Tweede Vervolg der Brieven (Second Continuation of the Letters), Letters 61 - 67 (2nd)
January 1, 1697 Published Zaden van Boomen (Seeds of Trees), Letters 46, 47 (2nd)
January 1, 1697 Received fees from new citizens in the name of the city's camerbewaarders and messengers
February 4, 1697 Maarten Etienne van Velden wrote Letter L-313 to Leeuwenhoek about receiving Sesde Vervolg der Brieven
February 12, 1697 Wrote Letter L-314 of 1697-02-12 to Maarten Etienne van Velden, regretting Van Velden's difficulties caused by his defence of Copernicus and in support, enclosing a copy of a letter from a gentleman in Brabant
February 19, 1697 Wrote Letter L-315 of 1697-02-19 to Hans Sloane about sending Sesde Vervolg der Brieven and wanting to receive the latest Philosophical Transactions and the works of Malpighi
March 13, 1697 Royal Society read Letter L-315 of 19 February 1697 and agreed to send Philosophical Transactions
March 25, 1697 Wrote Letter L-316 of 1697-03-25 to the members of the Royal Society as a cover letter to Continuatio Arcanorum Naturae
April 1, 1697 Pieter vander Slaart wrote Letter L-317 some months before April 1697 about visiting Leeuwenhoek with a German doctor
April 1, 1697 Visited by Johann Anderson, a German lawyer and natural scientist
April 5, 1697 Wrote Letter L-318 of 1697-04-05 to the members of the Royal Society about experiments with magnets, a meniscus in a glass, and patients given 'sympathetic' powder as a medicine by a German quack doctor
May 1, 1697 Antonio Magliabechi wrote Letter L-319 in spring 1697 with a booklet by Dr. Scaramucci about elephant bones found in Saxony
May 15, 1697 Wrote Letter L-320 of May 1697 to Victor van Beughem about how to distribute the enclosed copies of Continuatio Arcanorum Naturae
May 17, 1697 John Harwood wrote Letter L-321 of 1697-05-17 to Leeuwenhoek about enclosed issues of Philosophical Transactions
June 1, 1697 Antonio Magliabechi wrote Letter L-322 with more news of recently published books in Italian and Latin by Italians that he thought might be of interest
June 1, 1697 Visited by Sir Francis Child, an English banker and politician
June 6, 1697 Wrote Letter L-323 of 1697-06-06 to Antonio Magliabechi about marine fossils found in mountain rocks and the present of copies of Continuatio Arcanorum Naturae sent to Florence
July 1, 1697 Wrote letter of 1697-07-01 (AB 186) to Luca Giamberti
July 3, 1697 Royal Society read Letter L-316 of 25 March 1697, and asked Robert Hooke to review the enclosed Continuatio Arcanorum Naturae
July 19, 1697 Luca Giamberti wrote to Leeuwenhoek about a gift book from Magliabechi
September 3, 1697 Visited neice Rijcke van Leeuwen in Rotterdam
September 3, 1697 Wrote Letter 109 of 1697-09-03 (AB 187) to Jan van Leeuwen
September 10, 1697 Wrote Letter 110 of 1697-09-10 (AB 188) to Members of the Royal Society
October 12, 1697 cousin Jannetje Maertens (Johanna) Leeuwenhoek married Frans van Trigt
October 15, 1697 Visited by Tsar Peter the Great of Russia
November 2, 1697 Wrote letter of 1697-11-02 (AB 189) to Antonio Magliabechi
December 1, 1697 Wrote letter of 1697-12-01 (AB 190) to Johan Arnoldi
December 10, 1697 aunt Anna Verloo left coins to Maria Thonis and her cousin Magdaleentje
January 1, 1698 Published A. van Leeuwenhoeks 41ste Missive, Geschreven aen (written to) de Koninklijke Societeit tot Londen
January 1, 1698 Published Onsigtbare Verborgentheden (Invisible Mysteries), Letters 38, 42, 43 (3rd)
January 15, 1698 Johan Arnoldi wrote to Leeuwenhoek about problems delivering Magliabechi's gift book
February 20, 1698 Wrote letter of 1698-02-20 (AB 191) to Antonio Magliabechi
March 21, 1698 Govert Bidloo wrote to Leeuwenhoek about little animals in sheep's livers
April 17, 1698 Wrote letter of 1698-04-17 (AB 192) to Antonio Magliabechi
May 9, 1698 Wrote Letter 111 of 1698-05-09 (AB 193) to Members of the Royal Society
July 1, 1698 Traveled to Antwerp.
July 5, 1698 Appointed curator of the insolvent estate of Hendrick van Tol
August 14, 1698 Wrote letter of 1698-08-14 (AB 194) to Antonio Magliabechi
September 20, 1698 Wrote Letter 112 of 1698-09-20 (AB 195) to Anthonie Heinsius
December 17, 1698 Wrote Letter 113 of 1698-12-17 (AB 196) to Harmen van Zoelen
February 1, 1699 Wrote Letter 114 of 1699-02-01 (AB 197) to N.N.
February 28, 1699 Wrote letter of 1699-02-28 (AB 198) to Antonio Magliabechi
March 4, 1699 Listed as a correspondent of Claude Burlet by the Académie des Sciences of Paris
March 29, 1699 At Leeuwenhoek's request, the mayors relieved him of his duties as camerbewaarder, appointed Arnold Ramp in his place, and appointed Christiaen Drom to replace Ramp as travelling messsenger
April 26, 1699 Wrote Letter 115 of 1699-04-26 (AB 199) to Harmen van Zoelen
June 9, 1699 Wrote Letter 116 of 1699-06-09 (AB 200) to Members of the Royal Society
June 23, 1699 Wrote Letter 117 of 1699-06-23 (AB 201) to Members of the Royal Society
August 5, 1699 Wrote Letter 118 of 1699-08-05 (AB 202) to N.N.
September 25, 1699 Wrote Letter 119 of 1699-09-25 (AB 204) to Members of the Royal Society
September 25, 1699 Wrote letter of 1699-09-01 (AB 203) to Hans Sloane
October 1, 1699 Wrote Letter 120 of 1699-10-01 (AB 205) to Ehrenfried Walther von Tschirnhaus
October 16, 1699 Wrote Letter 121 of 1699-10-16 (AB 206) to Antonio Magliabechi
December 1, 1699 Received payment from city for duties with magistrate's court
December 12, 1699 City set salaries for camerbewaarders serving as inspectors
January 1, 1700 Visited by Hans Sloane, his editor at Philosophical Transactions
January 2, 1700 Wrote Letter 122 of 1700-01-02 (AB 207) to Hans Sloane
January 14, 1700 Wrote Letter 123 of 1700-01-14 (AB 208) to Nicolaes Boogaert van Belois
May 20, 1700 Wrote Letter 124 of 1700-05-20 (AB 209) to Hendrik van Bleyswijk
May 20, 1700 Wrote Letter 126 of 1700-05-20 (AB 210) to Anthonie Heinsius
May 28, 1700 Hans Sloane wrote to Leeuwenhoek about translation problems and parasitic worms
June 2, 1700 Wrote Letter 125 of 1700-06-02 (AB 211) to Frederik Adriaan van Reede van Renswoude
June 14, 1700 Wrote Letter 127 of 1700-06-14 (AB 212) to Hans Sloane
June 16, 1700 Wrote Letter 133 of 1700-06-16 (AB 213) to N.N.
July 9, 1700 Wrote Letter 128 of 1700-07-09 (AB 214) to Hans Sloane
July 10, 1700 Wrote Letter 129 of 1700-07-10 (AB 215) to Anthonie Heinsius
July 19, 1700 Received letter from Hans Sloane with larvae to examine
July 24, 1700 Began series of observations of rams' testicles
July 27, 1700 Continued observations of rams' testicles
July 27, 1700 Wrote Letter 130 of 1700-07-27 (AB 216) to Hans Sloane
July 30, 1700 Concluded series of observations of rams' testicles
August 1, 1700 Wrote Letter 131 of 1700-08-01 (AB 217) to N.N.
September 7, 1700 Wrote Letter 132 of 1700-09-07 (AB 218) to Hans Sloane
October 26, 1700 Wrote Letter 134 of 1700-10-26 (AB 219) to Hans Sloane
November 9, 1700 John Chamberlayne wrote to Hans Sloane about difficulties translating Leeuwenhoek's letters
December 25, 1700 Wrote Letter 135 of 1700-12-25 (AB 220) to Hans Sloane
January 4, 1701 cousin Lambrecht Huijchs Leeuwenhoek buried
January 28, 1701 Wrote Letter 136 of 1701-01-28 (AB 221) to Hans Sloane
February 9, 1701 Wrote letter of 1701-02-09 (AB 222) to Frederik Adriaan van Reede van Renswoude
April 8, 1701 Wrote letter of 1701-04-08 (AB 223) to the Mayors of Delft
April 15, 1701 Wrote Letter 137 of 1701-04-15 (AB 224) to Members of the Royal Society
June 21, 1701 Wrote Letter 138 of 1701-06-21 (AB 226) to Members of the Royal Society
June 21, 1701 Wrote Letter 139 of 1701-06-21 (AB 225) to John Chamberlayne
June 21, 1701 Wrote letter of 1701-06-21 (AB 227) to Hans Sloane
August 1, 1701 At age 68, his 50th publication in Philosophical Transactions
August 2, 1701 Wrote Letter 140 of 1701-08-02 (AB 228) to Members of the Royal Society; bequest of 26 magnifying glasses
August 26, 1701 Wrote Letter 141 of 1701-08-26 (AB 229) to Frederik Adriaan van Reede van Renswoude
September 16, 1701 Hans Sloane wrote to Leeuwenhoek personally thanking him for the bequest of 26 magnifying glasses
November 7, 1701 Hans Sloane wrote to Leeuwenhoek expressing the Royal Society's thanks for the bequest of 26 magnifying glasses
December 6, 1701 Wrote Letter 142 of 1701-12-06 (AB 231) to John Somers
December 6, 1701 Wrote letter of 1701-12-06 (AB 230) to Hans Sloane
December 20, 1701 Wrote Letter 143 of 1701-12-20 (AB 232) to Members of the Royal Society
January 1, 1702 Published Sevende Vervolg der Brieven (Seventh Continuation of the Letters), Letters 108 - 146
February 9, 1702 Wrote Letter 144 of 1702-02-09 (AB 233) to Hendrik van Bleyswijk
February 14, 1702 Wrote Letter 145 of 1702-02-14 (AB 234) to Members of the Royal Society
April 19, 1702 cousin Cornelis Lambrechts Leeuwenhoek (1670-1702) buried
April 20, 1702 Wrote Letter 146 of 1702-04-20 (AB 235) to Karl von Hessen-Kassel
April 20, 1702 Wrote letter of 1702-04-20 (AB 236) to Karl von Hessen-Kassel
April 28, 1702 Wrote letter of 1702-04-28 (AB 237) to Members of the Royal Society
December 8, 1702 Wrote letter of 1702-12-08 (AB 238) to John Chamberlayne
December 25, 1702 Wrote letter of 1702-12-25 (AB 239) to Members of the Royal Society
February 5, 1703 Wrote letter of 1703-02-05 (AB 240) to Members of the Royal Society
February 26, 1703 Wrote letter of 1703-02-26 (AB 241) to Members of the Royal Society
March 3, 1703 Robert Hooke died
November 3, 1703 Wrote letter of 1703-11-03 (AB 242) to Hans Sloane
November 3, 1703 Wrote letter of 1703-11-03 (AB 243) to Members of the Royal Society
December 4, 1703 Wrote letter of 1703-12-04 (AB 244) to Members of the Royal Society
December 8, 1703 "We had a frightful storm from the southwest"
January 1, 1704 Published Vervolg der Brieven (Continuation of the Letters), Letters 53 - 60 (3rd)
January 1, 1704 Tried to resign from city inspector / wine gauger job
January 8, 1704 Wrote letter of 1704-01-08 (AB 245) to Members of the Royal Society
February 1, 1704 Wrote letter of 1704-02-01 (AB 246) to Members of the Royal Society
February 11, 1704 Wrote letter of 1704-02-11 (AB 247) to Petrus Valckenier
March 21, 1704 Wrote letter of 1704-03-21 (AB 248) to Members of the Royal Society
May 29, 1704 Pieter Pollinckoven appointed wine gauger
July 22, 1704 Wrote letter of 1704-07-22 (AB 249) to Members of the Royal Society
September 16, 1704 Wrote letter of 1704-09-16 (AB 250) to Members of the Royal Society
October 3, 1704 Wrote letter of 1704-10-03 (AB 251) to John Chamberlayne
November 4, 1704 Wrote letter of 1704-11-04 (AB 252) to Members of the Royal Society
December 13, 1704 Wrote letter of 1704-12-13 (AB 253) to Members of the Royal Society
January 1, 1705 Peter Stout appointed assistant wine gauger
March 3, 1705 Wrote letter of 1705-03-03 (AB 254) to Members of the Royal Society
March 3, 1705 Wrote letter of 1705-03-03 (AB 255) to John Chamberlayne
March 12, 1705 Wrote letter of 1705-03-12 (AB 256) to Antonio Magliabechi
March 27, 1705 Wrote letter of 1705-03-27 (AB 257) to Members of the Royal Society
March 30, 1705 Visited by Pieter Valkenier
April 24, 1705 Wrote letter of 1705-04-24 (AB 258) to Members of the Royal Society
May 25, 1705 Wrote letter of 1705-05-25 (AB 259) to Members of the Royal Society
October 1, 1705 Visited by Francesco Cornaro
December 18, 1705 Wrote letter of 1705-12-18 (AB 260) to Francesco Corner
December 29, 1705 Wrote letter of 1705-12-29 (AB 261) to Members of the Royal Society
March 7, 1706 Visited by Govert Bidloo
March 7, 1706 Wrote letter of 1706-03-07 (AB 262) to Govert Bidloo
March 19, 1706 Wrote letter of 1706-03-19 (AB 263) to Members of the Royal Society
April 20, 1706 Wrote letter of 1706-04-20 (AB 264) to Members of the Royal Society
June 1, 1706 Wrote letter of 1706-06-01 (AB 265) to Members of the Royal Society
December 1, 1706 Wrote letter of 1707-00-01 (AB 266) to Angelus van Wikhuysen
April 23, 1707 Hans Sloane wrote to Leeuwenhoek about not having received letters from him
May 17, 1707 Wrote letter of 1707-05-17 (AB 267) to John Chamberlayne
May 18, 1707 The Royal Society read Letter 267 of 1707-05-17 about bezoar stone and unanswered letters
July 1, 1707 At age 74, his 75th publication in Philosophical Transactions
July 5, 1707 Wrote letter of 1707-07-05 (AB 268) to Members of the Royal Society
July 7, 1707 Visited by Gilbert and Thomas Burnet
July 12, 1707 Wrote letter of 1707-07-12 (AB 269) to Members of the Royal Society
July 25, 1707 Wrote letter of 1707-07-25 (AB 270) to Members of the Royal Society
August 10, 1707 Wrote letter of 1707-08-10 (AB 271) to Anthonie Heinsius
October 18, 1707 Wrote letter of 1707-10-18 (AB 272) to Members of the Royal Society
November 22, 1707 Wrote letter of 1707-11-22 (AB 273) to Members of the Royal Society
December 6, 1707 Wrote letter of 1707-12-06 (AB 274) to Members of the Royal Society
January 1, 1708 Published Arcana Naturae Microscopiorum (Nature's Mcroscopical Mysteries), 19 Letters from 28 - 52 (3rd)
January 1, 1708 Wrote letter of 1708-01-01 (AB 275) to Members of the Royal Society
January 29, 1708 printer-bookseller Hendrik van Cronevelt buried
April 29, 1708 daughter Maria Thonis named to receive a bequest in the will of her Bisschop cousins
May 8, 1708 Bought neighboring property on Nieuwstraat
June 29, 1708 Wrote letter of 1708-06-29 (AB 276) to Members of the Royal Society
August 28, 1708 Wrote letter of 1708-08-28 (AB 277) to Members of the Royal Society
October 9, 1708 Wrote letter of 1708-10-09 (AB 278) to Members of the Royal Society
August 11, 1709 Hans Sloane received a letter from Dr. Archibald Adams about the making of microscopes
September 10, 1709 Wrote letter of 1709-09-10 (AB 279) to Hans Sloane
September 10, 1709 Wrote letter of 1709-09-10 (AB 280) to John Chamberlayne
November 22, 1709 Wrote letter of 1709-11-22 (AB 281) to John Chamberlayne
January 2, 1710 Visited by Alexander Stuart and two Scots gentlemen
January 14, 1710 Wrote letter of 1710-01-14 (AB 282) to Members of the Royal Society
January 26, 1710 cousin Elisabeth Maertens Leeuwenhoek married Leonard van Amsterdam
February 2, 1710 Wrote letter of 1710-02-21 (AB 283) to Members of the Royal Society
June 6, 1710 Wrote letter of 1710-06-06 (AB 284) to Members of the Royal Society
July 1, 1710 Visited by Alexander Stuart
November 11, 1710 Wrote letter of 1710-11-11 (AB 285) to Members of the Royal Society
November 26, 1710 daughter Maria Thonis sold two little houses
November 27, 1710 Visited by John Farrington
December 4, 1710 Visited by Zacharias Conrad von Uffenbach: "more of ingenuity than foundation"
August 15, 1711 Wrote letter of 1711-08-15 (AB 286) to Anthonie Heinsius
August 18, 1711 Wrote letter of 1711-08-18 (AB 287) to James Petiver
September 22, 1711 Wrote letter of 1711-09-22 (AB 288) to Members of the Royal Society
November 23, 1711 Wrote letter of 1711-11-23 (AB 289) to Anthonie Heinsius
December 23, 1711 Delft's mayors annulled Leeuwenhoek's position of district supervisor
December 29, 1711 Wrote letter of 1711-12-29 (AB 290) to Anthonie Heinsius
December 29, 1711 Wrote letter of 1711-12-29 (AB 291) to Anthonie Heinsius
February 11, 1712 Made will; he and daughter Maria universal heirs
March 1, 1712 Wrote letter of 1712-03-01 (AB 292) to Members of the Royal Society
March 25, 1712 microscopist Nehemiah Grew died
April 12, 1712 Wrote letter of 1712-04-12 (AB 293) to Members of the Royal Society
June 10, 1712 Wrote letter of 1712-06-10 (AB 294) to Members of the Royal Society
August 5, 1712 Appointed guardian of ? Leeuwenvelt
November 8, 1712 Wrote Letter I of 1712-11-08 (AB 296) to Anthonie Heinsius about the muscle fibres of a whale
November 8, 1712 Wrote letter of 1712-11-08 (AB 295) to Anthonie Heinsius, a cover letter for AB 296
November 28, 1712 nephew Adriaan Johannes Swalmius married Agatha Amelia Cocquis
December 17, 1712 Wrote Letter II of 1712-12-17 (AB 297) to Anthonie Heinsius about salts in the blood of a shrimp and the muscle fibres and enveloping membranes of cod, shrimp, flounder, and perch
January 1, 1713 Published Cinnaber Naturalis (Natural Cinnabar), Letters 48 - 52 (2nd)
February 28, 1713 Wrote Letter III of 1713-02-28 (AB 298) to Jan Meerman about wheat and barley grains, beans, peas, and chestnuts, vessels and membranes in coconut rind, and the embryo in an apple pip and in a coconut
March 14, 1713 Wrote Letter IV of 1713-03-14 (AB 299) to Jan Meerman about the eye of a whale, the lens, and the cornea and calculations of the pressure upon a whale's eye at great depth
March 25, 1713 Wrote Letter V of 1713-03-25 (AB 300) to Adriaen van Assendelft
March 29, 1713 Wrote Letter VI of 1713-03-29 (AB 301) to Anthonie Heinsius
June 28, 1713 Wrote Letter VII of 1713-06-28 (AB 302) to Members of the Royal Society
June 30, 1713 Wrote Letter VIII of 1713-06-30 (AB 303) to Anthonie Heinsius
October 12, 1713 Wrote letter of 1713-10-12 (AB 304) to Hans Sloane
October 13, 1713 Hans Sloane wrote to Leeuwenhoek about responses to his recent letters
October 24, 1713 Wrote Letter IX of 1713-10-24 (AB 305) to Antony Cinck
November 19, 1713 nephew Jan Adriaans Swalmius baptized
December 7, 1713 nephew Adriaan Johannes Swalmius admitted as notary
January 6, 1714 cousin Maarten Pieters Hogenhouck appointed church warden, Oude Kerk and Nieuwe Kerk
January 26, 1714 daughter Maria received bequest from Bisschop estate
March 22, 1714 Leibniz wrote to Louis Bourguet: "a fable of extravagant proportions"
May 9, 1714 Visited by Dr. Richard Bradley, professor of botany at Cambridge
June 22, 1714 Wrote Letter X of 1714-06-22 (AB 306) to Members of the Royal Society
July 8, 1714 Richard Waller wrote to Leeuwenhoek about how the Royal Society received his observations
August 17, 1714 Andries Jacobs appointed assistant city inspector / wine gauger
August 19, 1714 Richard Waller wrote to Leeuwenhoek about the receipt of his latest letter and the Royal Society's annual recess
August 21, 1714 Wrote Letter XI of 1714-08-21 (AB 307) to Members of the Royal Society
October 23, 1714 niece Maria Jans de Molijn's widowed husband Cornelis Haaxman made will
October 26, 1714 Wrote Letter XII of 1714-10-26 (AB 308) to Members of the Royal Society
November 4, 1714 Wrote Letter XIII of 1714-11-04 (AB 309) to Adriaen van Assendelft
November 9, 1714 Wrote Letter XIV of 1714-11-09 (AB 310) to Members of the Royal Society
November 17, 1714 newphew Adriaan Johannes Swalmius married Adriana de Bries
November 20, 1714 Wrote Letter XV of 1714-11-20 (AB 311) to Members of the Royal Society
January 1, 1715 astronomer Edmond Halley, editor again of Philosophical Transactions from 1715-1719, published only one letter by Leeuwenhoek
January 1, 1715 Published Continuatio Epistolarum (Continuation of the Letters), Letters 53-60 (3rd)
January 11, 1715 Wrote letter of 1715-01-11 (AB 312) to Anthonie Heinsius
February 27, 1715 Appointed executor of Leeuwenvelt estate
February 28, 1715 Anthonie Heinsius wrote (AB 313) to Leeuwenhoek thanking him for his letters and praising his importance
March 26, 1715 Wrote Letter XVI of 1715-03-26 (AB 314) to Antony Cinck
July 1, 1715 Visited by Joachim Georg Reinerding
July 7, 1715 Wrote Letter XVII of 1715-07-07 (AB 315) to Antony Cinck
August 5, 1715 Gottfried Leibniz wrote (AB 316) to Leeuwenhoek about sperm and encouraging young people
August 5, 1715 Named in document using Vermeer estate as security
September 28, 1715 Wrote Letter XVIII of 1715-09-28 (AB 317) to Gottfried Leibniz
October 29, 1715 Gottfried Leibniz wrote (AB 318) to Leeuwenhoek about his observations and teaching his methods
November 18, 1715 Wrote letter of 1715-11-18 (AB 319) to Gottfried Leibniz
November 18, 1715 Wrote Letter XIX of 1715-11-18 (AB 320) to Gottfried Leibniz
January 1, 1716 Paid the familiegeld (estate tax) of 20 gulden
February 25, 1716 Wrote letter of 1716-02-25 (AB 321) to Anthonie Heinsius
March 3, 1716 Wrote Letter XX of 1716-03-13 (AB 322) to Gottfried Leibniz
March 31, 1716 Gottfried Leibniz wrote (AB 323) to Leeuwenhoek about membranes, multiple births, and reproduction
April 3, 1716 Leibniz wrote to Bourguet in defense of Leeuwenhoek, "to whom the public owes thanks. ... It is not right to despise him."
May 10, 1716 Wrote Letter XXI of 1716-05-10 (AB 324) to Hubert Kornelis Poot
May 16, 1716 Wrote Letter XXII of 1716-05-16 (AB 325) to Gerard van Loon
May 19, 1716 Wrote Letter XXIII of 1716-05-19 (AB 326) to Gottfried Leibniz
May 22, 1716 Wrote Letter XXIV of 1716-05-22 (AB 327) to Cornelis Spiering
June 3, 1716 Received medal from faculty at Louvain
June 12, 1716 Wrote Letter XXV of 1716-06-12 (AB 324) to Antony Cinck
June 22, 1716 Wrote Letter XXVI of 1716-06-22 (AB 325) to Jan Gerard Kerkherdere
June 25, 1716 Witnessed baptism of great-niece Barbera, who died two weeks later
September 1, 1716 Visited by Hermaan Boerhaave, Frederik Ruysch, and Abraham van Bleiswijk
September 17, 1716 Wrote Letter XXVII of 1716-09-17 (AB 326) to Abraham Cornelis van Bleyswyck
September 28, 1716 Wrote Letter XXVIII of 1716-09-28 (AB 327) to Herman Boerhaave
October 1, 1716 Visited again by Joachim Georg Reinerding
October 10, 1716 Herman Boerhaave wrote to Leeuwenhoek in response to his letter about coconuts
November 5, 1716 Wrote Letter XXIX of 1716-11-05 (AB 328) to Herman Boerhaave
November 17, 1716 Wrote Letter XXX of 1716-11-17 (AB 329) to Gottfried Leibniz

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