The temperature on May 9, 1910 was between -0.1 °C and 12.4 °C and averaged 6.1 °C. There was 2.5 mm of rain. There was 4.4 hours of sunshine (29%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northeast. Source: KNMI
April 12 » SMSZrínyi, one of the last pre-dreadnought battleships built by the Austro-Hungarian Navy, is launched.
April 28 » Frenchman Louis Paulhan wins the 1910 London to Manchester air race, the first long-distance aeroplane race in England.
May 31 » The South Africa Act comes into force, establishing the Union of South Africa.
July 15 » In his book Clinical Psychiatry, Emil Kraepelin gives a name to Alzheimer's disease, naming it after his colleague Alois Alzheimer.
August 22 » Korea is annexed by Japan with the signing of the Japan–Korea Treaty of 1910, beginning a period of Japanese rule of Korea that lasted until the end of World War II.
October 14 » English aviator Claude Grahame-White lands his aircraft on Executive Avenue near the White House in Washington, D.C.
Day of death June 12, 1920
The temperature on June 12, 1920 was between 11.2 °C and 26.2 °C and averaged 19.2 °C. There was 12.7 hours of sunshine (76%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-southeast. Source: KNMI
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
January 13 » The Reichstag Bloodbath of January 13, 1920, the bloodiest demonstration in German history.
March 8 » The Arab Kingdom of Syria, the first modern Arab state to come into existence, is established.
March 28 » Palm Sunday tornado outbreak of 1920 affects the Great Lakes region and Deep South states.
July 12 » The Soviet–Lithuanian Peace Treaty is signed, by which Soviet Russia recognizes the independence of Lithuania.
August 11 » The Latvian–Soviet Peace Treaty, which relinquished Russia's authority and pretenses to Latvia, is signed, ending the Latvian War of Independence.
September 16 » The Wall Street bombing: A bomb in a horse wagon explodes in front of the J. P. Morgan building in New York City killing 38 and injuring 400.
When copying data from this family tree, please include a reference to the origin: Ferry Hegeman, "Family tree Hegeman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-hegeman/I52011.php : accessed February 5, 2026), "Helena Lamberta Schomaker- (1910-1920)".
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