April 1, 1673 |
cousin Magdaleentje (Helena) Maertens Leeuwenhoek (1653-1720) married Johannes de Coep |
April 28, 1673 |
Wrote Letter 1 of 1673-04-28 (AB 1) to Henry Oldenburg |
May 7, 1673 |
The Royal Society received Leeuwenhoek's first letter |
May 15, 1673 |
Henry Oldenburg wrote to Reinier de Graaf about the Royal Society's reception of Leeuwenhoek's first letter |
May 19, 1673 |
At age 40, first letter published in Philosophical Transactions |
August 8, 1673 |
mentor Constantijn Huygens wrote to Robert Hooke about Leeuwenhoek |
August 15, 1673 |
Wrote Letter 2 of 1673-08-15 (AB 2) to Henry Oldenburg |
August 21, 1673 |
mentor Reinier de Graaf buried |
October 6, 1673 |
First letter's ten figures published in Philosophical Transactions |
October 24, 1673 |
Leeuwenhoek's family members in 1673 |
November 8, 1673 |
Wrote letter of 1673-11-08 (AB 3) to Henry Oldenburg |
January 1, 1674 |
Paid the Familiegeld (estate tax) |
February 12, 1674 |
Constantijn Huygens wrote to Oldenburg about Leeuwenhoek and his own single-lens microscope |
March 10, 1674 |
nieces Margrieta and Maria Jans de Molijn married Arnoldus van den Heuvel and Cornelis Haaxman |
March 18, 1674 |
sister-in-law Maria de Meij married Pieter Schepens |
April 5, 1674 |
Wrote letter of 1674-04-05 (AB 4) to Constantijn Huygens |
April 7, 1674 |
Wrote Letter 3 of 1674-04-07 (AB 5) to Henry Oldenburg |
April 16, 1674 |
Wrote letter of 1674-04-16 (AB 6) to Henry Oldenburg |
April 24, 1674 |
Wrote letter of 1674-04-24 (AB 7) to Constantijn Huygens |
April 24, 1674 |
Appointed curator of the abandoned estate of Bartholomeus Ritmeier |
April 24, 1674 |
Henry Oldenburg wrote to Leeuwenhoek requesting that he examine saliva, chyle, sweat, and sperm |
June 1, 1674 |
Wrote Letter 4 of 1674-06-01 (AB 8) to Henry Oldenburg |
July 6, 1674 |
Wrote Letter 5 of 1674-07-06 (AB 9) to Henry Oldenburg |
August 1, 1674 |
First observed microbes |
August 5, 1674 |
Visited by Holger Jacobæus, the Bartholin brothers, and Arent Seyn; described as "ingenious but illiterate" |
August 15, 1674 |
Visited by Johannes Swammerdam |
August 16, 1674 |
Ordered as curator to hand over the debt books of Bartholomeus Ritmeier |
August 20, 1674 |
Henry Oldenburg wrote to Leeuwenhoek encouraging him to send more observations |
August 24, 1674 |
daughter Maria made a will |
September 7, 1674 |
Wrote letter of 1674-09-07 (AB 10) to Henry Oldenburg |
September 7, 1674 |
Wrote Letter 6 of 1674-09-07 (AB 11) to Henry Oldenburg |
October 19, 1674 |
Wrote Letter 7 of 1674-10-19 (AB 12) to Henry Oldenburg |
October 26, 1674 |
Henry Oldenburg wrote to Leeuwenhoek encouraging him and asking about the kind of salt he was observing |
November 12, 1674 |
The Royal Society read and discussed Leeuwenhoek's letter of June 1, 1674 |
December 4, 1674 |
Wrote Letter 8 of 1674-12-04 (AB 13) to Henry Oldenburg |
December 21, 1674 |
Appointed to administer the affairs of sister-in-law Maria de Meij |
December 22, 1674 |
sister-in-law Maria de Meij and Pieter Schepens granted a divorce |
December 24, 1674 |
Henry Oldenburg wrote to Leeuwenhoek about his doubts about globules |
December 26, 1674 |
Wrote letter of 1674-12-26 (AB 14) to Constantijn Huygens |
December 31, 1674 |
sister-in-law Catharina Swalmius buried |
January 1, 1675 |
cousin Maerten Huijchs Leeuwenhoek appointed tax farmer |
January 20, 1675 |
Christiaan Huygens wrote to Henry Oldenburg doubting Leeuwenhoek's observations of globules |
January 22, 1675 |
Wrote Letter 9 of 1675-01-22 (AB 15) to Henry Oldenburg |
February 2, 1675 |
Henry Oldenburg wrote to Christiaan Huygens about doubting Leeuwenhoek's globules |
February 11, 1675 |
Wrote Letter 10 of 1675-02-11 (AB 16) to Henry Oldenburg |
February 19, 1675 |
Henry Oldenburg wrote to Leeuwenhoek in response to his letter of 1675-01-22 |
March 26, 1675 |
Wrote Letter 11 of 1675-03-26 (AB 17) to Henry Oldenburg |
April 12, 1675 |
Henry Oldenburg wrote to Leeuwenhoek recommending that he get help from knowledgable people |
August 14, 1675 |
Wrote Letter 12 of 1675-08-14 (AB 18) to Henry Oldenburg |
August 22, 1675 |
Henry Oldenburg wrote to Leeuwenhoek acknowledging reciept of his letters |
September 15, 1675 |
First observed microbes in rain water |
December 15, 1675 |
Jan Vermeer, the painter, buried |
December 20, 1675 |
Wrote Letter 13 of 1675-12-20 (AB 19) to Henry Oldenburg |
December 28, 1675 |
Henry Oldenburg wrote to Leeuwenhoek about the reaction in London to his observations |
January 22, 1676 |
Wrote letter of 1676-01-22 (AB 20) to Henry Oldenburg |
January 26, 1676 |
sister-in-law Maria de Meij buried |
February 3, 1676 |
Henry Oldenburg wrote to Leeuwenhoek requesting that he examine hair |
February 22, 1676 |
Wrote Letter 14 of 1676-02-22 (AB 21) to Henry Oldenburg |
April 5, 1676 |
co-worker Daniel Bogaert married Maria van Rees |
April 21, 1676 |
Wrote Letter 15 of 1676-04-21 (AB 22) to Henry Oldenburg |
April 24, 1676 |
Began series of experiments to observe microbes |
April 26, 1676 |
Began Pepper 2 experiment |
May 4, 1676 |
Henry Oldenburg wrote to Leeuwenhoek about Hooke's and Grew's reactions to recent observations |
May 29, 1676 |
Wrote Letter 16 of 1676-05-29 (AB 23) to Henry Oldenburg |
July 1, 1676 |
Visited by Christiaan Huygens during the summer; he saw the microbes in Leeuwenhoek's infusions |
July 28, 1676 |
Wrote letter of 1676-07-28 (AB 24) to Henry Oldenburg |
July 28, 1676 |
Wrote Letter 17 of 1676-07-28 (AB 25) to Robert Boyle |
September 30, 1676 |
Appointed curator of estate of Catherine Bolnes, Vermeer's widow |
October 9, 1676 |
Wrote Letter 18 of 1676-10-09 (AB 26) to Henry Oldenburg |
October 18, 1676 |
Henry Oldenburg wrote to Leeuwenhoek; sent Philosophical Transactions no. 127 |