What day of the week was September 17, 1683?
The day of the week September 17th, 1683 fell on was a Friday.
Antonie van Leeuwenhoek writes a letter to the Royal Society describing "animalcules": the first known description of protozoa.
The day of the week September 17th, 1683 fell on was a Friday.
Antonie van Leeuwenhoek writes a letter to the Royal Society describing "animalcules": the first known description of protozoa.