The temperature on July 8, 1911 was between 11.1 °C and 24.4 °C and averaged 18.1 °C. There was 12.4 hours of sunshine (75%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northwest. Source: KNMI
January 26 » Glenn Curtiss flies the first successful American seaplane.
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
May 30 » At the Indianapolis Motor Speedway, the first Indianapolis 500 ends with Ray Harroun in his Marmon Wasp becoming the first winner of the 500-mile auto race.
July 7 » The United States, UK, Japan, and Russia sign the North Pacific Fur Seal Convention of 1911 banning open-water seal hunting, the first international treaty to address wildlife preservation issues.
August 14 » United States Senate leaders agree to rotate the office of President pro tempore of the Senate among leading candidates to fill the vacancy left by William P. Frye's death.
August 29 » Ishi, considered the last Native American to make contact with European Americans, emerges from the wilderness of northeastern California.
Day of death January 9, 1984
The temperature on January 9, 1984 was between 1.0 °C and 5.8 °C and averaged 3.0 °C. There was 0.3 mm of rain during 0.4 hours. There was 3.4 hours of sunshine (42%). The partly or heavily clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the northwest. 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.
March 29 » The Baltimore Colts load its possessions onto fifteen Mayflower moving trucks in the early morning hours and transfer its operations to Indianapolis.
July 1 » The PG-13 rating is introduced by the MPAA.
September 5 » STS-41-D: The Space Shuttle Discovery lands after its maiden voyage.
September 21 » Brunei joins the United Nations.
October 11 » Aboard the Space Shuttle Challenger, astronaut Kathryn D. Sullivan becomes the first American woman to perform a space walk.
October 12 » The Provisional Irish Republican Army fail to assassinate Prime Minister Margaret Thatcher and her cabinet. The bomb kills five people and wounds 31.
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/I53547.php : accessed March 6, 2026), "Jan Boekholt (1911-1984)".
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