The temperature on August 1, 1911 was between 15.6 °C and 25.9 °C and averaged 20.5 °C. There was 9.2 hours of sunshine (59%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northwest. Source: KNMI
April 2 » The Australian Bureau of Statistics conducts the country's first national census.
May 9 » The works of Gabriele D'Annunzio are placed in the Index of Forbidden Books by the Vatican.
July 24 » Hiram Bingham III re-discovers Machu Picchu, "the Lost City of the Incas".
August 1 » Harriet Quimby takes her pilot's test and becomes the first U.S. woman to earn an Aero Club of America aviator's certificate.
November 19 » The Doom Bar in Cornwall claimed two ships, Island Maid and Angele, the latter killing the entire crew except the captain.
December 14 » Roald Amundsen's team, comprising himself, Olav Bjaaland, Helmer Hanssen, Sverre Hassel, and Oscar Wisting, becomes the first to reach the South Pole.
Day of marriage January 30, 1944
The temperature on January 30, 1944 was between 5.3 °C and 10.5 °C and averaged 7.5 °C. There was 1.3 hours of sunshine (15%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
February 24 » Merrill's Marauders: The Marauders begin their 1,000-mile journey through Japanese-occupied Burma.
April 28 » World War II: Nine German E-boats attacked US and UK units during Exercise Tiger, the rehearsal for the Normandy landings, killing 946.
June 17 » Iceland declares independence from Denmark and becomes a republic.
July 6 » The Hartford circus fire, one of America's worst fire disasters, kills approximately 168 people and injures over 700 in Hartford, Connecticut.
September 11 » World War II: RAF bombing raid on Darmstadt and the following firestorm kill 11,500.
October 27 » World War II: German forces capture Banská Bystrica during Slovak National Uprising thus bringing it to an end.
When copying data from this family tree, please include a reference to the origin: John Bart, "Family tree Denneman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-denneman/I69.php : accessed March 15, 2026), "Johannes Hermanus "Jan" Denneman (1911-1980)".
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