The temperature on April 20, 1911 was between 3.9 °C and 15.2 °C and averaged 9.6 °C. There was 11.7 hours of sunshine (82%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
January 26 » Glenn Curtiss flies the first successful American seaplane.
April 29 » Tsinghua University, one of mainland China's leading universities, is founded.
May 15 » In Standard Oil Co. of New Jersey v. United States, the United States Supreme Court declares Standard Oil to be an "unreasonable" monopoly under the Sherman Antitrust Act and orders the company to be broken up.
May 21 » President of Mexico Porfirio Díaz and the revolutionary Francisco Madero sign the Treaty of Ciudad Juárez to put an end to the fighting between the forces of both men, concluding the initial phase of the Mexican Revolution.
November 3 » Chevrolet officially enters the automobile market in competition with the Ford Model T.
December 29 » Mongolia gains independence from the Qing dynasty, enthroning 8th Jebtsundamba Khutughtu as Khagan of Mongolia.
Day of death June 16, 1995
The temperature on June 16, 1995 was between 9.3 °C and 13.1 °C and averaged 10.9 °C. There was 2.6 mm of rain during 5.5 hours. The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
In The Netherlands , there was from Monday, August 22, 1994 to Monday, August 3, 1998 the cabinet a href="https://nl.wikipedia.org/wiki/Kabinet-Kok_I" class="extern">Kok I, with W. Kok (PvdA) as prime minister.
February 21 » Steve Fossett lands in Leader, Saskatchewan, Canada becoming the first person to make a solo flight across the Pacific Ocean in a balloon.
May 28 » The 7.0 Mw Neftegorsk earthquake shook the former Russian settlement of Neftegorsk with a maximum Mercalli intensity of IX (Violent). Total damage was $64.1–300million, with 1,989 deaths and 750 injured. The settlement was not rebuilt.
July 5 » Armenia adopts its constitution, four years after its independence from the Soviet Union.
July 23 » Comet Hale–Bopp is discovered; it becomes visible to the naked eye on Earth nearly a year later.
November 14 » A budget standoff between Democrats and Republicans in the U.S. Congress forces the federal government to temporarily close national parks and museums and to run most government offices with skeleton staffs.
December 5 » Sri Lankan Civil War: Sri Lanka's government announces the conquest of the Tamil stronghold of Jaffna.
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/I85237.php : accessed January 16, 2026), "A.I. Roosendaal (1911-1995)".
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