Antonie Philips van Leeuwenhoek ( , ; October 24 , 1632 -- August 26 , 1723 ) was a Dutch tradesman and scientist .
Antonie Philips van Leeuwenhoek ( 24 October 1632 -- 30 August 1723 ; name pronounced ` Laywenhook ' ) was a Dutch tradesman and scientist from Delft , Netherlands .