1974 Death Abraham Schierbeek, Dutch biologist (Leeuwenhoek), dies at 87 1929 Event Queen-mother Emma opens Antonie van Leeuwenhoek House in Amsterdam 1915 Event Antoni van Leeuwenhoek's Hospital in Amsterdam opens 1723 Death Thonis van Leeuwenhoek, biologist/inventor (microscope), dies at 90 1683 Event Antonie van Leeuwenhoek reports existence of bacteria 1632 Birthday Antony van Leeuwenhoek, Hol, naturalist, Philosophical Transactions
