The temperature on May 3, 1947 was between 6.7 °C and 16.0 °C and averaged 11.5 °C. There was 0.2 mm of rain during 0.2 hours. There was 2.7 hours of sunshine (18%). The average windspeed was 5 Bft (very strong wind) and was prevailing from the east. Source: KNMI
February 21 » In New York City, Edwin Land demonstrates the first "instant camera", the Polaroid Land Camera, to a meeting of the Optical Society of America.
April 30 » In Nevada, Boulder Dam is renamed Hoover Dam.
August 7 » The Bombay Municipal Corporation formally takes over the Bombay Electric Supply and Transport (BEST).
August 14 » Pakistan gains Independence from the British Empire and joins the Commonwealth of Nations.
September 30 » The 1947 World Series is the first to be televised, to include an African-American player, to exceed $2 million in receipts, to see a pinch-hit home run, and to have six umpires on the field.
November 18 » The Ballantyne's Department Store fire in Christchurch, New Zealand, kills 41; it is the worst fire disaster in the history of New Zealand.
When copying data from this family tree, please include a reference to the origin: Peter J van Oss, "Van Oss tree", database, Genealogy Online (https://www.genealogieonline.nl/van-oss-tree/I0353.php : accessed January 4, 2026), "Johannes Petrus Maria Hoefnagel (1947-2021)".
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