The temperature on January 12, 1904 was between 0.2 °C and 5.1 °C and averaged 2.8 °C. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
February 9 » Russo-Japanese War: Battle of Port Arthur concludes.
February 17 » Madama Butterfly receives its première at La Scala in Milan.
February 28 » S.L. Benfica is founded in Portugal.
April 30 » The Louisiana Purchase Exposition World's Fair opens in St. Louis, Missouri.
May 5 » Pitching against the Philadelphia Athletics at the Huntington Avenue Grounds, Cy Young of the Boston Americans throws the first perfect game in the modern era of baseball.
October 27 » The first underground New York City Subway line opens, later designated as the IRT Broadway–Seventh Avenue Line.
Day of marriage July 13, 1926
The temperature on July 13, 1926 was between 15.6 °C and 26.3 °C and averaged 21.3 °C. There was 12.7 hours of sunshine (78%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east. Source: KNMI
April 21 » Al-Baqi cemetery, former site of the mausoleum of four Shi'a Imams, is leveled to the ground by Wahhabis.
May 4 » The United Kingdom general strike begins.
May 22 » Chiang Kai-shek replaces the communists in Kuomintang China.
August 5 » Harry Houdini performs his greatest feat, spending 91 minutes underwater in a sealed tank before escaping.
August 6 » Gertrude Ederle becomes the first woman to swim across the English Channel.
September 25 » The international Convention to Suppress the Slave Trade and Slavery is first signed.
Day of death March 10, 1970
The temperature on March 10, 1970 was between -6.3 °C and 5.3 °C and averaged -0.5 °C. There was 0.1 mm of rain. There was 7.9 hours of sunshine (69%). The almost cloudless was. The average windspeed was 1 Bft (weak wind) and was prevailing from the west-northwest. Source: KNMI
January 15 » Nigerian Civil War: Biafran rebels surrender following an unsuccessful 32-month fight for independence from Nigeria.
April 8 » Bahr El-Baqar primary school bombing: Israeli bombers strike an Egyptian school. Forty-six children are killed.
April 15 » During the Cambodian Civil War, massacre of the Vietnamese minority results in 800 bodies flowing down the Mekong river into South Vietnam.
May 11 » The 1970 Lubbock tornado kills 26 and causes $250million in damage.
May 31 » The 7.9 Mw Ancash earthquake shakes Peru with a maximum Mercalli intensity of VIII (Severe) and a landslide buries the town of Yungay, Peru. Between 66,794–70,000 were killed and 50,000 were injured.
October 16 » Canadian Prime Minister Pierre Trudeau invokes the War Measures Act during the October Crisis.
When copying data from this family tree, please include a reference to the origin: J. van Broekhoven, "Database Van Broekhoven", database, Genealogy Online (https://www.genealogieonline.nl/database-van-broekhoven/I53729.php : accessed February 23, 2026), "Petronella Anna Cornelia van Helvoort (1904-1970)".
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