The temperature on April 30, 1959 was between 8.6 °C and 12.0 °C and averaged 10.5 °C. There was 1.8 mm of rain during 4.9 hours. The almost completely overcast was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
March 18 » The Hawaii Admission Act is signed into law.
April 8 » A team of computer manufacturers, users, and university people led by Grace Hopper meets to discuss the creation of a new programming language that would be called COBOL.
May 30 » The Auckland Harbour Bridge, crossing the Waitematā Harbour in Auckland, New Zealand, is officially opened by Governor-General Charles Lyttelton, 10th Viscount Cobham.
August 7 » Explorer program: Explorer 6 launches from the Atlantic Missile Range in Cape Canaveral, Florida.
September 16 » The first successful photocopier, the Xerox 914, is introduced in a demonstration on live television from New York City.
November 21 » American disc jockey Alan Freed, who had popularized the term "rock and roll" and music of that style, is fired from WABC-AM radio over allegations he had participated in the payola scandal.
When copying data from this family tree, please include a reference to the origin: J Eijsermans, "Eijsermans family tree", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eijsermans/I187449.php : accessed March 11, 2026), "Petronella Johanna Christianen (± 1873-1959)".
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