The temperature on June 9, 1887 was about 14.3 °C. The air pressure was 8 kgf/m2 and came mainly from the west-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 96%. Source: KNMI
In The Netherlands , there was from April 23, 1884 to April 21, 1888 the cabinet Heemskerk, with Mr. J. Heemskerk Azn. (conservatief) as prime minister.
February 2 » In Punxsutawney, Pennsylvania the first Groundhog Day is observed.
February 8 » The Dawes Act authorizes the President of the United States to survey Native American tribal land and divide it into individual allotments.
April 10 » On Easter Sunday, Pope Leo XIII authorizes the establishment of the Catholic University of America.
July 26 » Publication of the Unua Libro, founding the Esperanto movement.
November 9 » The United States receives rights to Pearl Harbor, Hawaii.
November 13 » Bloody Sunday clashes in central London.
Day of marriage May 4, 1911
The temperature on May 4, 1911 was between 4.0 °C and 14.5 °C and averaged 9.9 °C. There was 9.5 mm of rain. There was 7.7 hours of sunshine (51%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
January 26 » Glenn Curtiss flies the first successful American seaplane.
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
September 23 » Pilot Earle Ovington makes the first official airmail delivery in America under the authority of the United States Post Office Department
September 25 » An explosion of badly degraded propellant charges on board the French battleship Liberté detonates the forward ammunition magazines and destroys the ship.
November 19 » The Doom Bar in Cornwall claimed two ships, Island Maid and Angele, the latter killing the entire crew except the captain.
December 29 » Mongolia gains independence from the Qing dynasty, enthroning 8th Jebtsundamba Khutughtu as Khagan of Mongolia.
Day of death March 31, 1953
The temperature on March 31, 1953 was between 4.4 °C and 9.4 °C and averaged 6.5 °C. There was 0.3 mm of rain during 0.2 hours. There was 4.0 hours of sunshine (31%). The partly clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
May 29 » Edmund Hillary and Sherpa Tenzing Norgay become the first people to reach the summit of Mount Everest, on Tenzing Norgay's (adopted) 39th birthday.
June 8 » The United States Supreme Court rules in District of Columbia v. John R. Thompson Co. that restaurants in Washington, D.C., cannot refuse to serve black patrons.
June 9 » The Flint–Worcester tornado outbreak sequence kills 94 people in Massachusetts.
June 18 » The Egyptian revolution of 1952 ends with the overthrow of the Muhammad Ali dynasty and the declaration of the Republic of Egypt.
August 17 » Addiction: First meeting of Narcotics Anonymous takes place, in Southern California.
August 19 » Cold War: The CIA and MI6 help to overthrow the government of Mohammad Mosaddegh in Iran and reinstate the Shah Mohammad Reza Pahlavi.
When copying data from this family tree, please include a reference to the origin: Leen Schaap, "Database Schaap", database, Genealogy Online (https://www.genealogieonline.nl/database-schaap/I1181.php : accessed December 30, 2025), "Gerard Schaap (1887-1953)".
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