The temperature on May 31, 1909 was between 10.6 °C and 23.0 °C and averaged 16.9 °C. There was 9.7 hours of sunshine (59%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south east. Source: KNMI
January 16 » Ernest Shackleton's expedition finds the magnetic South Pole.
January 25 » Richard Strauss's opera Elektra receives its debut performance at the Dresden State Opera.
February 20 » Publication of the Futurist Manifesto in the French journal Le Figaro.
April 13 » The military of the Ottoman Empire reverses the Ottoman countercoup of 1909 to force the overthrow of Sultan Abdul Hamid II.
April 14 » A massacre is organized by the Ottoman Empire against the Armenian population of Cilicia.
May 31 » The National Negro Committee, forerunner to the National Association for the Advancement of Colored People (NAACP), convenes for the first time.
Day of death January 15, 1910
The temperature on January 15, 1910 was between 1.9 °C and 8.2 °C and averaged 6.3 °C. There was 5.5 hours of sunshine (67%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
January 15 » Construction ends on the Buffalo Bill Dam in Wyoming, United States, which was the highest dam in the world at the time, at 325ft (99m).
March 28 » Henri Fabre becomes the first person to fly a seaplane, the Fabre Hydravion, after taking off from a water runway near Martigues, France.
July 4 » The Johnson–Jeffries riots occur after African-American boxer Jack Johnson knocks out white boxer Jim Jeffries in the 15th round. Between 11 and 26 people are killed and hundreds more injured.
July 24 » The Ottoman Empire captures the city of Shkodër, putting down the Albanian Revolt of 1910.
October 21 » HMSNiobe arrives in Halifax Harbour to become the first ship of the Royal Canadian Navy.
November 23 » Johan Alfred Ander becomes the last person to be executed in Sweden.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I168358.php : accessed October 19, 2026), "Hendrik Westerhof (1909-1910)".
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