The temperature on July 12, 1910 was between 13.2 °C and 22.2 °C and averaged 17.5 °C. There was 7.5 hours of sunshine (46%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
June 2 » Charles Rolls, a co-founder of Rolls-Royce Limited, becomes the first man to make a non-stop double crossing of the English Channel by plane.
June 25 » The United States Congress passes the Mann Act, which prohibits interstate transport of women or girls for “immoral purposes”; the ambiguous language would be used to selectively prosecute people for years to come.
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 1 » A large bomb destroys the Los Angeles Times building, killing 21.
November 7 » The first air freight shipment (from Dayton, Ohio, to Columbus, Ohio) is undertaken by the Wright brothers and department store owner Max Moorehouse.
November 20 » Mexican Revolution: Francisco I. Madero issues the Plan de San Luis Potosí, denouncing Mexican President Porfirio Díaz, calling for a revolution to overthrow the government of Mexico, effectively starting the Mexican Revolution.
Day of marriage April 18, 1930
The temperature on April 18, 1930 was between 1.4 °C and 9.1 °C and averaged 6.0 °C. There was 1.7 mm of rain during 1.8 hours. There was 1.6 hours of sunshine (11%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north-northwest. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
January 26 » The Indian National Congress declares 26 January as Independence Day or as the day for Poorna Swaraj ("Complete Independence") which occurred 17 years later.
March 13 » The news of the discovery of Pluto is announced by Lowell Observatory.
April 28 » The Independence Producers hosted the first night game in the history of Organized Baseball in Independence, Kansas.
June 16 » Sovnarkom establishes decree time in the USSR.
June 21 » One-year conscription comes into force in France.
November 11 » Patent number US1781541 is awarded to Albert Einstein and Leó Szilárd for their invention, the Einstein refrigerator.
When copying data from this family tree, please include a reference to the origin: Bob Smith, "Family tree Smith", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-smith/I22088.php : accessed January 29, 2026), "Maria Henriette Harmanus (1910-)".
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