Chronology of events: 1720--1723

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
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