The temperature on August 6, 1913 was between 4.7 °C and 17.6 °C and averaged 11.3 °C. There was 5.1 hours of sunshine (33%). The average windspeed was 2 Bft (weak wind) and was prevailing from the northwest. Source: KNMI
In The Netherlands , there was from February 12, 1908 to August 29, 1913 the cabinet Heemskerk, with Mr. Th. Heemskerk (AR) as prime minister.
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
June 19 » Natives Land Act, 1913 in South Africa implemented.
June 24 » Greece and Serbia annul their alliance with Bulgaria.
August 13 » First production in the UK of stainless steel by Harry Brearley.
August 16 » Tōhoku Imperial University of Japan (modern day Tohoku University) becomes the first university in Japan to admit female students.
October 31 » Dedication of the Lincoln Highway, the first automobile highway across United States.
December 23 » The Federal Reserve Act is signed into law by President Woodrow Wilson, creating the Federal Reserve System.
Day of death December 21, 1971
The temperature on December 21, 1971 was between 9.8 °C and 12.2 °C and averaged 11.0 °C. There was 0.1 mm of rain during 0.4 hours. There was 0.1 hours of sunshine (1%). The heavily clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
January 1 » Cigarette advertisements are banned on American television.
February 8 » South Vietnamese ground troops launch an incursion into Laos to try to cut off the Ho Chi Minh trail and stop communist infiltration.
April 10 » Ping-pong diplomacy: In an attempt to thaw relations with the United States, China hosts the U.S. table tennis team for a week-long visit.
June 30 » The crew of the Soviet Soyuz 11 spacecraft are killed when their air supply escapes through a faulty valve.
November 6 » The United States Atomic Energy Commission tests the largest U.S. underground hydrogen bomb, code-named Cannikin, on Amchitka Island in the Aleutians.
November 15 » Intel releases the world's first commercial single-chip microprocessor, the 4004.
Day of burial December 24, 1971
The temperature on December 24, 1971 was between 2.7 °C and 8.7 °C and averaged 5.7 °C. There was -0.1 mm of rain. There was 3.8 hours of sunshine (49%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
February 5 » Astronauts land on the moon in the Apollo 14 mission.
February 26 » U.N. Secretary-General U Thant signs United Nations proclamation of the vernal equinox as Earth Day.
March 18 » Peru: a landslide crashes into Yanawayin Lake, killing 200 people at the mining camp of Chungar.
April 19 » Launch of Salyut 1, the first space station.
November 14 » Mariner 9 enters orbit around Mars.
December 16 » Bangladesh Liberation War and Indo-Pakistani War of 1971: The ceasefire of the Pakistan Army brings an end to both conflicts. This is commemorated annually as Victory Day in Bangladesh, and as Vijay Diwas in India.
When copying data from this family tree, please include a reference to the origin: Louis Kramer, "Kramer Family Tree", database, Genealogy Online (https://www.genealogieonline.nl/kramer_stamboom/I571769.php : accessed February 1, 2026), "Jan Koops (1913-1971)".
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