January 9, 1720 |
Wrote letter of 1720-01-09 (AB 354) to members of the Royal Society about muscle fibres and membranes of a cow, mites on the flesh of a whale, and the nerves around the muscle fibres and tendons of a cow |
April 8, 1720 |
cousin Magdaleentje (Helena) Maertens Leeuwenhoek buried |
April 29, 1720 |
Received payment from the city for inspector / wine gauger duties |
April 29, 1720 |
Rented the farm in den Bommel to Johannes Braber |
August 3, 1720 |
Anthonie Heinsius died |
November 20, 1720 |
Wrote letter of 1720-11-20 (AB 355) to members of the Royal Society about the bone membrane and the canals in bone, the cell layers and blood vessels in the bone membrane and bone from the rib of a cow |
December 30, 1720 |
cousin Maarten Pieters Hogenhouck buried |
January 15, 1721 |
Wrote letter of 1721-01-15 (AB 356) to members of the Royal Society about the stomata of the leaves of boxwood, the number of them, and the down on the skin of a peach and a quince |
January 24, 1721 |
Wrote letter of 1721-01-24 (AB 357) to members of the Royal Society about vessels in wood from Ambon (Indonesia), oakwood, and pinewood, the muscle fibres of a cow, a whale, and a mouse, and the structure of a red blood cell |
April 11, 1721 |
Wrote letter of 1721-04-11 (AB 358) to members of the Royal Society about how flesh fibers are nourished by the blood vessels, this time in fish |
May 1, 1721 |
At age 88, his 100th publication in Philosophical Transactions |
June 27, 1721 |
Wrote letter of 1721-06-27 (AB 359) to members of the Royal Society about finally discovering the little holes in the membranes of beans and peas and about the little vessels in seed membranes |
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) |
February 22, 1722 |
James Jurin wrote to Leeuwenhoek summarizing and praising his life's work (AB 360) |
April 21, 1722 |
Wrote letter of 1722-04-21 (AB 361) to members of the Royal Society about the muscular fibres of different animals and whether iron becomes magnetic over time |
May 1, 1722 |
Wrote letter of 1722-05-01 (AB 362) to members of the Royal Society about the structure of fat particles in sheep, lamb, flatfish, and perch |
May 1, 1722 |
Wrote letter of 1722-05-01 (AB 363) to James Jurin, a cover letter asking for support for his observations of hermaphroditic animals |
May 15, 1722 |
Received payment from the city for inspector / wine gauger duties |
May 15, 1722 |
James Jurin wrote (AB 364) to Leeuwenhoek asking him to send Latin translations of his letters |
June 13, 1722 |
Wrote letter of 1722-06-13 (AB 365) to members of the Royal Society about the reproductive organs of a ewe and a fetus from it |
June 13, 1722 |
Wrote letter of 1722-06-13 (AB 366) to James Jurin, a cover letter expressing doubts that inoculations protect against smallpox |
July 7, 1722 |
Wrote letter of 1722-07-07 (AB 368) to James Jurin, a cover letter about his determination that no microorganisms are to be found in the pustules of those with smallpox |
July 7, 1722 |
Wrote letter of 1722-07-07 (AB 367) to the members of the Royal Society about calluses on human skin |
July 13, 1722 |
Received payment from the city for inspector / wine gauger duties |
November 20, 1722 |
Wrote letter of 1722-11-20 (AB 369) to James Jurin about the miscroscopic structure of diamonds and rock crystal |
December 24, 1722 |
James Jurin wrote (AB 370) to Leeuwenhoek about how to measure his microscopic observations |
January 15, 1723 |
Wrote letter of 1723-02-15 (AB 371) to members of the Royal Society about the exhaling vessels of boxwood leaves |
March 19, 1723 |
Wrote letter of 1723-03-19 (AB 372) to members of the Royal Society about blood, the size of blood globules, the state of his health, and the role of the ovary in reproduction |
May 31, 1723 |
Wrote letter of 1723-05-31 (AB 373) to members of the Royal Society about the structure and texture of the diaphragm, the source of his most severe ailment |
June 25, 1723 |
James Jurin wrote (AB 374) to Leeuwenhoek about blood globules and generation |
July 15, 1723 |
Visited by Matthew Raper |
August 1, 1723 |
Wrote letter of 1723-08-00 (AB 376) to James Jurin about his spermist view of the generation of animals and palpitations of his diaphragm |
August 1, 1723 |
Wrote letter of 1723-08-00 (AB 375) to James Jurin about the similarities between globules in blood and in the lees of wine to argue against Jurin’s hope to discover how blood globules are made |
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 27, 1723 |
Delft newspaper published notice of Leeuwenhoek's death |
August 30, 1723 |
pastor Petrus Gribius wrote to James Jurin of the Royal Society announcing Leeuwenhoek's death (AB 377) |
August 31, 1723 |
Buried in Oude Kerk |
September 4, 1723 |
Replaced as wine gauger by Lambert the Greek |
September 4, 1723 |
Johannes Hoogvliet wrote a note to James Jurin accompanying his Latin translation of Leeuwenhoek's last two letters (AB 378) |
October 1, 1723 |
James Jurin wrote to Peter Gribius about Leeuwenhoek's death (AB 379) |
October 4, 1723 |
pastor Petrus Gribius wrote to James Jurin of the Royal Society about Leeuwenhoek's methods (AB 380) |
October 4, 1723 |
daughter Maria wrote cover letter when she sent the cabinet with 26 magnifying glasses to the Royal Society (AB 381) |
November 2, 1723 |
translator John Chamberlayne died |
November 7, 1723 |
Abraham Edens presented cabinet with 26 magnifying glasses to the Royal Society; Isaac Newton wrote a receipt |
November 18, 1723 |
James Jurin wrote to Maria van Leeuwenhoek thanking her for sending the cabinet with 26 magnifying glasses |
November 18, 1723 |
James Jurin wrote to Arnoud van den Berch about the cabinet of microscopes |
December 17, 1723 |
James Jurin wrote to Peter Gribius in thanks for the cabinet full of "precious treasures" |