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
April 15, 1246 Count Willem II granted Delft city rights
June 12, 1246 Beginning of Delft's annual June market
January 1, 1250 Construction began on Oude Kerk
October 23, 1266 Count Floris V granted Delft freedom from tolls on imports and exports
January 14, 1267 Count Floris V granted the citizens of Delft complete freedom from tolls in his whole county.
November 30, 1268 Count Floris V expanded the size of the city
May 5, 1280 Count Floris V granted the citizens of Delft the right to charge taxes on dry goods
September 29, 1295 Count Floris V granted Delft's citizens the rights to a meathouse and breadhouse and the income from them.
December 14, 1299 Count Jan II confirmed the rights granted by Floris V
May 1, 1310 Count Willem III granted the citizens of Delft their own secular court.
November 27, 1342 Count Willem IV granted Delft a variety of rights over its own commercial affairs
December 20, 1342 Count Willem IV granted Delft the right to choose its own city secretary
January 1, 1350 Oude Kerk tower completed, already leaning due to subsidence
May 3, 1355 Count Willem V gave Delft permission to build bulwarks topped by walls around the city
March 11, 1359 Duke Albrecht I took Delft's city walls and important city rights after a month-long seige during the dispute between the Hook and Cod political factions
August 11, 1381 Nieuwe Kerk construction began; completed in 1655.
January 1, 1383 Construction began on Nieuwe Kerk
January 1, 1389 Construction began on the moat around the city
January 1, 1389 Duke Albrecht I established an elected water board
September 8, 1389 Duke Albrecht I extended to the citizens of Delft permission to dig a canal to the Maas River
July 6, 1394 Duke Albrecht I gave the citizens of Delft permission to build a new city wall
August 13, 1396 Duke Albrecht I restored Delft's city rights
September 6, 1396 First stone laid for the tower of the Nieuwe Kerk
January 1, 1400 Construction of Oostpoort, establishment of Delfshaven
January 1, 1400 Delft had around 6,500 inhabitants
December 20, 1417 Countess Jacoba issued a charter for management of Delft's administrative and financial affairs.
February 28, 1425 Jan van Brabant extended Delft's city rights to those living along the Schie
July 3, 1428 Duke Philip of Burgundy and Countess Jacqueline of Bavaria signed the Reconciliation of Delft ending the Hook and Cod wars
June 30, 1436 Duke Philip of Burgundy granted the Marktveld to Delft
September 7, 1445 Duke Philip of Burgundy issued a charter for Delft city fathers to appoint the first city council.
April 1, 1449 Duke Philip of Burgundy gave the city permission to continue building the city wall and towers.
July 13, 1450 Duke Philip of Burgundy granted Delft permission to build a watermill at the end of the Geerweg
September 6, 1496 Nieuwe Kerk tower completed
May 3, 1536 Fire destroyed a third of the houses in Delft.
January 1, 1555 great great-grandfather Jan Jacobs Hogenhouk (1539-1586) appointed magistrate in 1555-1557, 1559, 1561-1564
January 1, 1555 great-grandfather Cornelis Dircks Verburch (-1576) married Magdalena Jans van den Eyck
January 23, 1557 great-grandfather Sebastian Cornelis van den Berch (-1605) married Neeltje Jans Hogenhouck
January 1, 1558 great-uncle Cornelis Philips Leeuwenhoek born
January 1, 1559 great great-grandfather Jan Jacobs Hogenhouck bought land in Rijswijk
January 1, 1559 great-grandfather Philips Thonis Leeuwenhoek baptized (before 1559)
January 1, 1560 Delft had around 14,000 inhabitants
January 1, 1560 grandmother Margriete Cornelis Verburch (1560-1616) baptized
January 1, 1560 great great-grandfather Jan Jacobs Hogenhouk (1539-1586) appointed to Veertigraad, served 1560-1586
November 10, 1561 great great-grandfather Jan Jacobs Hogenhouk (1539-1586) appointed church warden, Nieuwe Kerk
January 1, 1565 great great-uncle Cornelis Cornelis van den Berch married Immetje Jans Hogenhouk
January 1, 1566 grandfather Jacob Sebastians van den Berch (1566-1615) baptized
August 24, 1566 Beeldenstorm spread to Delft
January 1, 1568 great-uncle Pieter Sebastians van den Berch (1568- before 1612) baptized
January 1, 1568 wife's paternal grandfather Arnoldus Hendricks Swalmius baptized
January 1, 1570 great-uncle Johan Sebastians van den Berch (1570-1644) baptized
January 15, 1570 great great-aunt Aeltje (Alida) Jans Hogenhouck (1550-1581) married Jacob Ewouts van der Dussen (1530-1599)
November 10, 1571 great-grandfather Sebastian Cornelis van den Berch (-1605) appointed church warden, Nieuwe Kerk
July 27, 1572 Delft surrendered to the Geuzen (Beggars)
December 31, 1572 Willem of Orange chose Delft as his headquarters during the Revolt
January 1, 1573 great great-grandfather Jan Jacobs Hogenhouk (1539-1586) appointed mayor
January 1, 1574 great great-aunt Aeltje's son Ewout Jacobs van der Dussen (1574-1653) baptized
July 30, 1574 The State of Holland decided to flood the country to impede the Spanish invasion
January 1, 1575 great-grandfather's nephew Claes Hendriks Verburch appointed to Veertigraad, served 1575-1609
January 1, 1576 great great-uncle Jacob Ewouts van der Dussen (1530-1599) appointed to Veertigraad
January 1, 1576 great-grandfather Cornelis Dircks Verburch (-1576) buried in Oude Kerk
September 16, 1576 great great-uncle Maerten Jans Hogenhouck (1550-1613) married Catharijne Adriaens van der Dussen (1555-1617)
January 1, 1577 great great-uncle Jacob Ewouts van der Dussen (1530-1599) appointed magistrate, served 1577-1581
January 1, 1578 wife's great-uncle Hendrik Hendriks Swalmius (1578-1649) baptized
January 1, 1579 great- great-uncle Jacob Adriaens van der Dussen (1546-1608) appointed to Veertigraad
January 1, 1579 great-grandfather Sebastian Cornelis van den Berch (-1605) appointed to Veertigraad, served 1579-1605
January 1, 1580 great-aunt Neeltje Jacobs van Adrichem (1580-1643) baptized
April 5, 1580 cousin Abraham Maertens Hogenhouck (1580-1641) baptized
January 1, 1581 great great-uncle Maerten Jans Hogenhouck (1550-1613) appointed magistrate in 1581, 1582, 1583, 1596
July 26, 1581 Act of Abjuration proclaimed independence of the new Dutch Republic
January 1, 1582 great great-uncle Gerrit Jans van der Eyck appointed to Veertigraad, served 1582-1620
January 1, 1582 wife's great-uncle Elezaar Hendriks Swalmius (1582-1652) baptized
January 1, 1583 Holland switched to the Gregorian calendar
December 18, 1583 great-uncle Cornelis Sebastians van den Berch married Fijtgen Pieters van der Burch
January 1, 1584 great-grandfather Sebastian Cornelis van den Berch (-1605) appointed magistrate
July 10, 1584 William, Prince of Orange, assassinated in Prinsenhof.
February 16, 1585 great-uncle Jan Cornelis Verburch married Annitgen Gerretsdr.
January 1, 1586 great great-grandfather Jan Jacobs Hogenhouck (1539-1586) buried
January 1, 1586 great great-uncle Maerten Jans Hogenhouck (1550-1613) appointed to Veertigraad, served 1586-1613
January 1, 1588 great great-uncle Gerrit Jans van der Eyck (1550?-1620) appointed magistrate
January 24, 1588 grandfather Jacob Sebastians van den Berch (1566-1615) married Margriete (Cryntge) Cornelis Verburch
April 10, 1588 great-aunt Margaretha Sebastians van den Berch married Jan Jans van Halmael de Jonge
January 1, 1589 great great-uncle Jacob Ewouts van der Dussen (1530-1599) appointed mayor
November 8, 1590 great-uncle Cornelis Philips Leeuwenhoek testified before a notary
January 1, 1592 great great-uncle Gerrit Jans van der Eyck (1550?-1620) appointed mayor
January 1, 1594 mother Margriete Jacobs van den Berch (c 1594-1664) baptized
May 22, 1594 grandfather Thonis Phillips Leeuwenhoek (-1643) married Geertgen Huygen (-1600)
January 1, 1596 father-in-law Johannes Swalmius (1596-1661) baptized
January 1, 1598 great great-uncle Maerten Jans Hogenhouck (1550-1613) appointed mayor in 1598
January 25, 1598 great-uncle Pieter Sebastians van den Berch (1568- before 1612) married Neeltgen Jacobs van Adrichem
July 8, 1598 great-grandmother Magdalena Jans van der Eyck buried in Oude Kerk
March 10, 1599 great great-grandfather Dirck Cornelis Verburch buried in Oude Kerk
April 8, 1599 Jacob Ewouts van der Dussen buried, age 69
January 1, 1600 Haardstedenregister paid by various family members as noted
January 1, 1600 Johan Sems and Jan Pieters Dou's Practijck des lantmetens published
November 1, 1600 grandmother Geertgen Huygen, first wife of Thonis Philips Leeuwenhoek, buried
February 1, 1601 grandfather Thonis Phillips Leeuwenhoek (-1643) registered as member of the Nederduits Gereformeerde Kerk
February 7, 1601 grandfather Thonis Phillips Leeuwenhoek (-1643) registered his children with the Weeskamer
April 11, 1601 grandfather Thonis Phillips Leeuwenhoek (-1643) married Neeltge Cornelis
March 20, 1602 VOC (Vereenigde Oostindische Compagnie) chamber established in Delft
January 1, 1603 great-grandfather Sebastian Cornelis van den Berch (-1605) appointed magistrate
January 1, 1604 cousin Ewout Jacobs van der Dussen (1574-1653) appointed to Veertigraad
July 15, 1605 great-grandfather Sebastian Cornelis van den Berch buried in Oude Kerk
January 1, 1608 grandfather Jacob Sebastians van den Berch (1566-1615) appointed to Veertigraad
January 3, 1608 cousin Jacob Adriaens van der Dussen buried
January 9, 1608 grandfather Thonis Phillips’s and great-uncle Cornelis Philips Leeuwenhoek’s wives named in will
August 25, 1609 great-uncle Cornelis Philips Leeuwenhoek plaintiff in court case
October 31, 1609 step-grandmother Neeltge Cornelis, second wife of Thonis Philips Leeuwenhoek, buried
January 1, 1610 grandfather Jacob Sebastians van den Berch (1566-1615) appointed magistrate
February 2, 1610 great-uncle Cornelis Phillips Leeuwenhoek's wife and children named in will
September 19, 1610 grandfather Thonis Phillips Leeuwenhoek (-1643) married Truytgen Joriaens van Ham
March 15, 1611 great-uncle Cornelis Philips Leeuwenhoek sold property
September 1, 1612 step-grandmother Truytgen Joriaens van Ham, third wife of grandfather Thonis Phillips Leeuwenhoek (-1643), buried
January 1, 1613 cousin Adriaan Maertens Hogenhouck (-1637) appointed to Veertigraad
January 5, 1613 grandfather Jacob Sebastians van den Berch (1566-1615) appointed Meester van Charitaten
July 24, 1613 great great-uncle Maerten Jans Hogenhouck (1550-1613) buried
January 1, 1614 cousin Adriaan Maertens Hogenhouck (-1637) appointed magistrate
January 11, 1614 grandfather Jacob Sebastians van den Berch (1566-1615) appointed warden of Oude Kerk and Nieuwe Kerk
March 22, 1614 grandfather Thonis Phillips Leeuwenhoek testified to marriage conditions with Agniesgen Bastiaens
April 6, 1614 grandfather Thonis Phillips Leeuwenhoek (-1643) married Agniesgen Bastiaens
June 1, 1614 cousin Aeltge Maertens Hogenhouck married Hugo Lucas van der Dussen
April 21, 1615 great-uncle Cornelis Phillips Leeuwenhoek testified to marriage conditions with Machtelt Jacobs
May 10, 1615 great-uncle Cornelis Philips Leeuwenhoek (-1616) married Machteld Jacobs
May 31, 1615 great great-aunt Cornelia Sebastians van den Berch married Ewout van Schilperoort
August 1, 1615 grandfather Jacob Sebastians van den Berch (1566-1615) buried in Oude Kerk
June 18, 1616 grandmother Margriete Cornelis Verburch (1560-1616) buried
November 20, 1616 great-uncle Cornelis Philips Leeuwenhoek buried in Oude Kerk
April 23, 1617 cousin Cornelia Jans van Halmael married Anthony Cornelis de Man
January 1, 1618 cousin Jacob Maertens Hogenhouck (-1638) appointed to Veertigraad
March 3, 1618 Delft Stadhuis burned down.
May 20, 1618 aunt Aeltgen Jacobs van den Berch married Hendrik van Gellinkhuysen
August 29, 1618 Calvinist Revolution (1618)
September 24, 1618 Delft Veertigraad purged of 14 Arminians by Maurice of Nassau, Prince of Orange
April 10, 1619 step-grandfather Jan Jacobs de Molijn buried
January 1, 1620 Verponding 1620-1632 paid by various family members as noted
August 23, 1620 uncle Huijch Thonis Leeuwenhoek married Magdalena Maertens van Cuyk
December 20, 1620 great great-uncle Gerrit Jans van der Eyck buried in Oude Kerk
July 1, 1621 Mayors established a bank in City Hall
January 1, 1622 cousin Jacob Maertens Hogenhouck (-1638) appointed magistrate
January 30, 1622 parents Philips Thonis Leeuwenhoek and Margriete Jacobs van den Berch married
June 6, 1622 in-laws Elias de Meij and Maria Virlin married
July 30, 1623 sister Margrieta Philips Leeuwenhoek (1623-1678) baptized in Nieuwe Kerk
August 11, 1624 cousin Lambrecht Huijchs Leeuwenhoek (1624-1701) baptized in Nieuwe Kerk
January 1, 1625 great-uncle Maarten Sebastians van den Berch (-1638) appointed to Veertigraad
January 1, 1626 great-uncle Cornelis Sebastians van den Berch de oude died after 1626
January 6, 1626 sister Geertruijt Philips Leeuwenhoek (1626- before 1649) baptized
September 27, 1626 sister-in-law Maria de Meij (1626-1676) baptized in Nieuwe Kerk
July 31, 1627 great-grandmother Neeltje Jans Hogenhouck buried in Oude Kerk
May 11, 1628 sister Neeltje Philips Leeuwenhoek (1628-1650) baptized in Nieuwe Kerk
May 30, 1628 cousin Geertruijt Huijchs Leeuwenhoek (1628-1684) baptized
July 3, 1629 grandfather Thonis Phillips Leeuwenhoek (-1643) loaned 500 gulden to Jan Thomas van der Wilt
December 20, 1629 wife Barbara de Meij (1629-1666) baptized in Nieuwe Kerk
April 1, 1630 sister Maria Philips Leeuwenhoek (1630- before 1643) baptized in Nieuwe Kerk
April 10, 1630 in-laws Johannes Swalmius and Margriete Uuytenbroucx married
November 23, 1630 uncle Cornelis Jacobs van den Berch married Elisabeth Heyndrics van Waert
January 1, 1631 brother-in-law Adriaan Johannes Swalmius (1631-1667) baptized
February 13, 1631 cousin Maerten Huijchs Leeuwenhoek (1631-1694) baptized
May 18, 1631 mentor Cornelis 's Gravesande baptized
November 21, 1631 step-grandmother Agniesgen Bastiaens, widow of grandfather Thonis Phillips Leeuwenhoek (-1643) buried in Nieuwe Kerk
January 1, 1632 Verponding 1632-1654 paid by various family members as noted
October 24, 1632 Born on Oosteinde
October 31, 1632 Jan Vermeer baptized in Nieuwe Kerk
November 4, 1632 Baptized in Nieuwe Kerk
January 1, 1633 Adrian Metius' Manuale arithmeticae & geometrice practicae published
April 24, 1633 uncle Jan Jacobs van den Berch married Annetje Claes Brugmans
October 20, 1633 father-in-law Elias de Meij made a will
November 13, 1633 cousin Jannitgen Huijchs Leeuwenhoek (1633-1681) baptized
March 5, 1634 great-uncle Jan Philips Leeuwenhoek married Geertruijt Arijens
April 9, 1634 wife Cornelia Johannes Swalmius (1634-1694) baptized in Valkenburg
July 23, 1634 aunt Cornelia Jacobs van den Berch married Simon Elsevier
October 1, 1634 aunt Catharina Jacobs van den Berch married Pieter Maurits Douchy
July 27, 1636 cousin Pieter Abrahams Hogenhouck married Catharijna Harmens van Ruijven
August 10, 1636 co-worker Daniel Bogaert baptized
April 30, 1637 cousin Adriaan Maertens Hogenhouck buried in Nieuwe Kerk
May 24, 1637 sister Catharina Philips Leeuwenhoek (1637- after 1684) baptized
May 31, 1637 cousin Margaretha (Grietjen) Huijchs Leeuwenhoek (1637-1702) baptized
November 26, 1637 aunt Annetje Jacobs van den Berch married Maerten Terseyden
December 1, 1637 father Philips Thonis Leeuwenhoek made a will in Den Haag
January 1, 1638 cousin Abraham Maertens Hogenhouck (1580-1641) appointed to Veertigraad
January 1, 1638 Haardstedenregister paid by various family members as noted
January 8, 1638 father Philips Thonis Leeuwenhoek buried in Nieuwe Kerk
March 10, 1638 cousin Jacob Maertens Hogenhouck buried in Oude Kerk
March 15, 1638 Regular canal boat service begun between Delft and Leiden
October 15, 1638 great-uncle Maarten Sebastians van den Berch buried in Oude Kerk
November 1, 1638 mother Margrietke Jacobs van den Berch presented father Philips Thonis Leeuwenhoek's will to the orphan chamber
January 1, 1639 cousin Abraham Maertens Hogenhouck (1580-1641) appointed magistrate
November 17, 1639 cousin Pieter Abrahams Hogenhouck purchased house on Koornmarkt
December 1, 1640 mother Margriete Jacobs van den Berch married Jacob Jans de Molijn
December 18, 1640 stepfather Jacob Jans de Molijn appeared before Weeskamer to appoint children's guardians
January 1, 1641 Began attending school in Warmond
January 1, 1641 cousin Cornelis Maertens Hogenhouck (-1656) appointed to Veertigraad
July 15, 1641 cousin Abraham Maertens Hogenhouck buried in Oude Kerk
January 1, 1643 cousin Pieter Abrahams Hogenhouck appointed to Veertigraad
February 10, 1643 great-aunt Neeltje Jacobs van Adrichem buried in Nieuwe Kerk
April 2, 1643 grandfather Thonis Phillips Leeuwenhoek (-1643) made a will
May 8, 1643 sister Margrieta Philips Leeuwenhoek married step-brother Jan Jacobs de Molijn
May 12, 1643 grandfather Thonis Phillips Leeuwenhoek buried in Nieuwe Kerk
January 1, 1644 Rene Descartes' Principia philosophiae (Principles of Philosophy) published
March 11, 1644 great-uncle Johan Sebastians van den Berch buried in Oude Kerk
December 29, 1644 brother-in-law Jan Jacobs Molijn permitted to become city painter
January 1, 1645 cousin Cornelis Maertens Hogenhouck (-1656) appointed magistrate
February 9, 1645 nephew Philips Jans de Molijn (1645 - ) baptized
January 1, 1646 Apprenticed with his uncle in Benthuizen
May 8, 1646 father-in-law Elias de Meij buried in Nieuwe Kerk
October 5, 1646 mother-in-law Maria Virljn registered Elias de Meij's 1633 will
May 12, 1647 niece Margrieta Jans de Molijn (1647 - ) baptized
October 8, 1647 sister Geertruijt Philips Leeuwenhoek married Jan (Johannes) Michiels van Schuijlenburg
January 1, 1648 Apprenticed at 16 in Amsterdam to Scottish linen merchant William Davidson
January 18, 1649 great-aunt Aaltge Sebastians van den Berch made will
May 2, 1649 stepfather Jacob Jans de Molijn (1594-1649) buried in Oude Kerk
May 3, 1649 great-aunt Aaltge Sebastians van den Berch buried in Oude Kerk
June 29, 1649 great-aunt Aaltge Sebastians van den Berch's estate items distributed
July 13, 1649 great-aunt Aaltge Sebastians van den Berch's estate divided
October 4, 1650 sister Neeltje Philips Leeuwenhoek buried in Nieuwe Kerk
October 18, 1650 sister-in-law Maria Elias de Meij in business
December 21, 1650 In 2nd stadthouderless period, Delft granted charter for an independent Veertigraad
August 2, 1651 niece Maria Elsevier married Jan Strick
October 28, 1651 cousin Maerten Huijchs Leeuwenhoek married Jennitgen (Johanna) Vosmaer
January 1, 1652 mentor William Davidson remarried and moved to Nieuwe Eylant
March 31, 1652 cousin Lambrecht Huijchs Leeuwenhoek married Adriaentgen Cornelis van Spaendonck
June 4, 1652 wife's great-uncle Elezaar Hendriks Swalmius buried
April 5, 1653 Jan (Johannes) Reijniers Vermeer married Catharina Bolnes
April 9, 1653 cousin Lambrecht's son Anthonij Lambrechts Leeuwenhoek (1653-1671) baptized
May 5, 1653 Got power of attorney for William Davidson during first Anglo-Dutch war (1652-54)
October 21, 1653 wife Barbara de Meij and sister-in-law Maria de Meij made a will
November 23, 1653 cousin Magdaleentje (Helena) Maertens Leeuwenhoek (1653-1720) baptized
July 29, 1654 Married Barbara de Meij
October 6, 1654 Signed as brother-in-law of Maria de Meij when she bought a house on the Oosteinde
October 12, 1654 Delft Thunderclap: fire following explosion killed 1200 people and destroyed much of Delft
January 1, 1655 cousin Abraham's son Pieter Abrahams Hogenhouck (-1679) appointed magistrate
January 1, 1655 Paid his entry fee to the Sint Nicolaas Gilde
January 24, 1655 Jan Strick appointed camerbewaarder of the magistrate's chamber
February 2, 1655 wife Barbara de Meij revoked her pre-marital will
February 16, 1655 Bought the house and shop on the west side of the Hippolytusbuurt
March 17, 1655 sister Catharina Philips Leeuwenhoek (1637- after 1684) married Claes Jans van Leeuwen
April 25, 1655 nephew Jacob Jans de Molijn baptized
May 7, 1655 Made mortgage payment (first of eight) on the Gulden Hoofd
May 11, 1655 Inherited property on Oosteinde from first wife Barbara de Meij's family
June 21, 1655 mentor Cornelis 's Gravesande graduated from medical school
September 15, 1655 son Philips Leeuwenhoek (first so named) baptized, buried six weeks later
January 11, 1656 Borrowed 600 gulden from his mother
March 20, 1656 cousin Cornelis Maertens Hogenhouck buried in Oude Kerk
June 18, 1656 nephew Anthonij Jans de Molijn (1656-1729) baptized, witnessed by Antony
September 24, 1656 daughter Maria Thonis Leeuwenhoek (1656-1745) baptized
November 10, 1656 cousin Maria Maertens Leeuwenhoek (1656-1717) baptized
November 12, 1656 Jan Strick borrowed 4,000 gulden from his mother-in-law Cornelia van den Berch
December 26, 1656 Jan Strick, camerbewaarder of the magistrates' chamber, received a raise of 19 guilders
February 8, 1657 cousin Russje Lambrechts Leeuwenhoek (1657-1746) baptized
May 8, 1657 Made mortgage payment (second of eight) on the Gulden Hoofd
August 16, 1657 Named in Middelhoek estate inventory as owing 1800 gulden
December 31, 1657 Jan Strick, camerbewaarder of the magistrates' chamber, appointed manager of the city's Doele
February 26, 1658 mother Margrietke testified for a legal action by Johan Strick
February 27, 1658 mentor Dr. Cornelis 's Gravesande married Sara Ipelaer
May 8, 1658 Made mortgage payment (third of eight) on the Gulden Hoofd
September 1, 1658 Registered as a member of the Hervormde Gemeente Delft (Reformed Church in Delft)
September 29, 1658 daughter Margriete Thonis Leeuwenhoek baptized, then buried a week later
May 30, 1659 Made mortgage payment (fourth of eight) on the Gulden Hoofd
December 19, 1659 Issued receipts to two nephews for dry goods
January 24, 1660 Received payment from city for duties with magistrate's court
January 28, 1660 co-worker Daniel Bogaert married Annetge Willems van Schie
March 26, 1660 Appointed official of city magistrate's court
May 11, 1660 Made mortgage payment (fifth of eight) on the Gulden Hoofd
September 14, 1660 Compensated by city for expenses building wing for bridge
October 17, 1660 cousin Jannitgen Huijchs Leeuwenhoek (1633-1681) married Lucas Pieters van Kessel
January 1, 1661 father-in-law Johannes Swalmius buried
January 17, 1661 cousin Cornelia Abrahams Swalmius made a will
January 23, 1661 niece Geertruijt Jans de Molijn (1661-1736) baptized, witnessed by Antony and Barbara
January 24, 1661 Official due date of his annual payment from the city for his duties with the magistrate's court
March 26, 1661 mentor Dr. Cornelis 's Gravesande appointed City anatomist
April 28, 1661 Recieved payment for his duties with the magistrates' court
May 11, 1661 Made mortgage payment (sixth of eight) on the Gulden Hoofd
June 8, 1661 mentor Dr. Cornelis 's Gravesande married Agatha van Schagen
December 18, 1661 cousin Margrieta Maertens Leeuwenhoek baptized
December 30, 1661 Received a raise from the mayors for his duties with the magistrates' court
January 13, 1662 aunt Annetje Jacobs van den Berch died, leaving money to Antony
January 24, 1662 Official due date of his salary from the city for his duties with the magistrates' court
March 3, 1662 Made mortgage payment (seventh of eight) on the Gulden Hoofd
April 19, 1662 Made mortgage payment (last of eight) on the Gulden Hoofd
July 2, 1662 cousin Adriaen Lambrechts Leeuwenhoek (1662-1739) baptized
October 23, 1662 Made will in which he and wife Barbara named each other universal heirs
October 29, 1662 cousin Petronella Johans Strick baptized, witnessed by Antony
January 1, 1663 Christiaen Anhaltin's School-Boeck van de Wyn-Royeryen published
January 25, 1663 son Philips Leeuwenhoek (second) baptized, buried three weeks later
April 25, 1663 brother-in-law Adriaan Johannes Swalmius (1631-1667) married Margrieta van der Burch
July 2, 1663 Christiaan Huygens elected member of the Royal Society
August 1, 1663 Christiaan Huygens received letter from Gutschoven about how to grind small lenses
January 1, 1664 cousin Maerten Huijchs Leeuwenhoek appointed tax farmer
February 19, 1664 cousin Sara Maertens Leeuwenhoek (1664-1693) baptized
May 11, 1664 nephew Johannes Adriaans Swalmius (1664-1693) baptized
June 25, 1664 Bought a garden outside the walls of the city
August 19, 1664 son Philips Leeuwenhoek (third) baptized
September 3, 1664 mother Margriete Jacobs van den Berch (1594-1664) buried in Oude Kerk
September 29, 1664 Owed for store goods by the estate of Elizabeth Cornelis
November 25, 1664 Received a legacy from the estate of great-aunt Aaltge Sebastiaans van den Berch
January 1, 1665 Robert Hooke's Micrographia published
March 26, 1665 Christiaan Huygens acquired Hooke's Micrographia
July 13, 1665 Appointed guardian of second cousin Maria van Halmael
January 1, 1666 mentor Reinier de Graaf (1641-1673) moved to Delft
May 28, 1666 cousin Elisabeth Maertens Leeuwenhoek (1666-1743) baptized
June 27, 1666 son Philips Leeuwenhoek (third) buried in Oude Kerk
July 14, 1666 wife Barbara de Meij buried in Oude Kerk

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