The temperature on May 23, 1910 was between 10.8 °C and 23.7 °C and averaged 17.6 °C. There was 12.0 hours of sunshine (75%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
January 13 » The first public radio broadcast takes place; a live performance of the operas Cavalleria rusticana and Pagliacci are sent out over the airwaves from the Metropolitan Opera House in New York.
April 16 » The oldest existing indoor ice hockey arena still used for the sport in the 21st century, Boston Arena, opens for the first time.
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.
October 14 » English aviator Claude Grahame-White lands his aircraft on Executive Avenue near the White House in Washington, D.C.
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 June 6, 1930
The temperature on June 6, 1930 was between 9.8 °C and 24.7 °C and averaged 18.4 °C. There was 14.1 hours of sunshine (85%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-southeast. 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 30 » The Politburo of the Soviet Union orders the extermination of the Kulaks.
February 3 » Communist Party of Vietnam is founded at a "Unification Conference" held in Kowloon, British Hong Kong.
April 6 » At the end of the Salt March, Gandhi raises a lump of mud and salt and declares, "With this, I am shaking the foundations of the British Empire."
April 18 » The British Broadcasting Corporation announced that "there is no news" in their evening report.
May 24 » Amy Johnson lands in Darwin, Northern Territory, becoming the first woman to fly solo from England to Australia (she left on May 5 for the 11,000 mile flight).
September 8 » 3M begins marketing Scotch transparent tape.
Day of death May 6, 1985
The temperature on May 6, 1985 was between 5.8 °C and 20.0 °C and averaged 13.9 °C. There was -0.1 mm of rain. There was 5.6 hours of sunshine (37%). The partly or heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from Thursday, November 4, 1982 to Monday, July 14, 1986 the cabinet Lubbers I, with Drs. R.F.M. Lubbers (CDA) as prime minister.
July 10 » An Aeroflot Tupolev Tu-154 stalls and crashes near Uchkuduk, Uzbekistan (then part of the Soviet Union), killing all 200 people on board in the USSR's worst-ever airline disaster.
September 2 » Sri Lankan Civil War: Sri Lankan Tamil politicians and former MPs M. Alalasundaram and V. Dharmalingam are shot dead.
September 19 » Tipper Gore and other political wives form the Parents Music Resource Center as Frank Zappa and other musicians testify at U.S. Congressional hearings on obscenity in rock music.
October 4 » The Free Software Foundation is founded.
November 19 » Cold War: In Geneva, U.S. President Ronald Reagan and Soviet Union General Secretary Mikhail Gorbachev meet for the first time.
December 27 » Palestinian guerrillas kill eighteen people inside the airports of Rome, Italy, and Vienna, Austria.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I55069.php : accessed February 18, 2026), "Maria Helena "Lena" Heller (1910-1985)".
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