Chronology of events: 1693--1776

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.
Date
November 18, 1715 Wrote Letter XIX of 1715-11-18 (AB 317) to Gottfried Leibniz
November 18, 1715 Wrote letter of 1715-11-18 (AB 316) to Gottfried Leibniz
January 1, 1716 Paid the familiegeld (estate tax) of 20 gulden
February 25, 1716 Wrote letter of 1716-02-25 (AB 318) to Anthonie Heinsius
March 13, 1716 Wrote Letter XX of 1716-03-13 (AB 319) to Gottfried Leibniz
May 10, 1716 Wrote Letter XXI of 1716-05-10 (AB 320) to Hubert Kornelis Poot
May 16, 1716 Wrote Letter XXII of 1716-05-16 (AB 321) to Gerard van Loon
May 19, 1716 Wrote Letter XXIII of 1716-05-19 (AB 322) to Gottfried Leibniz
May 22, 1716 Wrote Letter XXIV of 1716-05-22 (AB 323) 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
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
November 21, 1716 Wrote Letter XXXI of 1716-11-21 (AB 330) to Herman Boerhaave
January 12, 1717 niece Maria Jans de Molijn's widowed husband Cornelis Haaxman's estate inventoried
January 16, 1717 cousin Maria Maertens Leeuwenhoek buried
March 2, 1717 Wrote Letter XXXII of 1717-03-02 (AB 331) to Abraham Cornelis van Bleyswyck
March 6, 1717 Wrote Letter XXXIII of 1717-03-06 (AB 332) to Members of the Royal Society
March 6, 1717 Wrote Letter XXXIV of 1717-03-06 (AB 333) to Members of the Royal Society
May 6, 1717 Wrote Letter XXXV of 1717-05-06 (AB 334) to Ewout van Bleiswijk
May 26, 1717 Wrote Letter XXXVI of 1717-05-26 (AB 335) to Abraham Cornelis van Bleyswyck
June 8, 1717 Named as neighbor in the inventory of Pieter van der Wilt's property
June 15, 1717 Wrote Letter XXXVII of 1717-06-15 (AB 336) to Members of the Royal Society
July 6, 1717 Wrote Letter XXXVIII of 1717-07-06 (AB 337) to Antony Cinck
July 13, 1717 Wrote Letter XXXIX of 1717-07-13 (AB 338) to Jan Gerard Kerkherdere
August 18, 1717 Wrote Letter XL of 1717-08-18 (AB 339) to Adriaan Johannes Swalmius
August 26, 1717 Wrote Letter XLI of 1717-08-26 (AB 340) to Herman Boerhaave
September 10, 1717 Wrote Letter XLII of 1717-09-10 (AB 341) to Frederik Adriaan van Reede van Renswoude
September 17, 1717 Wrote Letter XLIII of 1717-09-17 (AB 342) to Members of the Royal Society
October 8, 1717 Wrote Letter XLIV of 1717-10-08 (AB 343) to Members of the Royal Society
October 22, 1717 Wrote Letter XLV of 1717-10-22 (AB 344) to Members of the Royal Society
November 20, 1717 Wrote Letter XLVI of 1717-11-20 (AB 345) to Members of the Royal Society
December 15, 1717 Received payment from the city for inspector / wine gauger duties
December 23, 1717 Named again as neighbor in the disposition of Pieter van der Wilt's estate
January 1, 1718 Published Send-Brieven (Epistles), Letters I - XLVI
April 1, 1718 cousin Pieter Maartens Leeuwenhoek married Kniertje van der Doe
April 19, 1718 nephew Adriaan Johannes Swalmius married Elisabet van Heering
December 6, 1718 Named again as a neighbor in final sale of Pieter van der Wilt's property
December 30, 1718 Delft's mayors decided that the kamerbewaarder would no longer receive 300 g after the death of Leeuwenhoek
January 1, 1719 Published Epistolae ad Societatem (Letters to the Society), Letters 108 - 146
January 1, 1719 Published Epistolae Physiologicae (Physiological Letters), Letters I - XLVI
January 23, 1719 Received payment from the city for inspector / wine gauger duties
June 26, 1719 Made will with daughter Maria
April 8, 1720 cousin Magdaleentje (Helena) Maertens Leeuwenhoek buried
April 29, 1720 Received payment from the city for inspector / wine gauger duties
December 30, 1720 cousin Maarten Pieters Hogenhouck buried
May 1, 1721 At age 88, his 100th publication in Philosophical Transactions
November 17, 1721 Made will with daughter Maria
November 26, 1721 Amended will of November 17
November 30, 1721 Presented will of November 17 to notary Jan de Bries
December 19, 1721 grand-nephew Jan Cornelis Haaxman buried
January 1, 1722 Published Arcana Naturae Detecta (Nature's Mysteries Disclosed), Letters 32, 33, 37, 39 - 41, 61 - 92 (2nd)
January 1, 1722 Published Continuatio Arcanorum Naturae detectorum (Continuation of Nature's Mysteries Disclosed), Letters 93 - 107 (2nd)
January 1, 1722 Published Opera Omnia, seu Arcana Naturae Microscopiorum (The Works, or Nature's Microscopical Mysteries), 25 Letters from 28 - 60 (4th)
May 15, 1722 Received payment from the city for inspector / wine gauger duties
July 13, 1722 Received payment from the city for inspector / wine gauger duties
August 25, 1723 Requested on his deathbed that Hoogvliet translate his final two letters into Latin
August 26, 1723 Died in his Hippolytusbuurt home, 90 years old
August 30, 1723 pastor Petrus Gribius wrote to James Jurin of the Royal Society announcing Leeuwenhoek's death
August 31, 1723 Buried in Oude Kerk
October 4, 1723 pastor Petrus Gribius wrote to James Jurin of the Royal Society about Leeuwenhoek's methods
October 4, 1723 daughter Maria sent cabinet with 26 magnifying glasses to the Royal Society
November 2, 1723 translator John Chamberlayne died
January 1, 1724 Martin Folkes' article about Leeuwenhoek's microscopes published in Philosophical Transactions
January 1, 1729 Reinier Boitet's Beschryving der Stadt Delft published; first biography of Leeuwenhoek

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