The temperature on February 20, 1935 was between 2.7 °C and 11.0 °C and averaged 7.8 °C. There was 1.7 mm of rain during 3.2 hours. There was 0.5 hours of sunshine (5%). The average windspeed was 6 Bft (strong wind) and was prevailing from the south-southwest. Source: KNMI
February 20 » Caroline Mikkelsen becomes the first woman to set foot in Antarctica.
June 3 » One thousand unemployed Canadian workers board freight cars in Vancouver, beginning a protest trek to Ottawa.
June 11 » Inventor Edwin Armstrong gives the first public demonstration of FM broadcasting in the United States at Alpine, New Jersey.
July 24 » The Dust Bowl heat wave reaches its peak, sending temperatures to 109°F (43°C) in Chicago and 104°F (40°C) in Milwaukee.
September 24 » Earl and Weldon Bascom produce the first rodeo ever held outdoors under electric lights.
December 27 » Regina Jonas is ordained as the first female rabbi in the history of Judaism.
Day of marriage December 31, 1965
The temperature on December 31, 1965 was between 2.4 °C and 8.6 °C and averaged 6.2 °C. There was 5.5 mm of rain during 7.4 hours. There was 1.2 hours of sunshine (15%). The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
January 1 » The People's Democratic Party of Afghanistan is founded in Kabul, Afghanistan.
March 19 » The wreck of the SSGeorgiana, valued at over $50,000,000 and said to have been the most powerful Confederate cruiser, is discovered by teenage diver and pioneer underwater archaeologist E. Lee Spence, exactly 102 years after its destruction.
July 30 » U.S. President Lyndon B. Johnson signs the Social Security Act of 1965 into law, establishing Medicare and Medicaid.
September 22 » The Indo-Pakistani War of 1965 between India and Pakistan over Kashmir, ends after the United Nations calls for a ceasefire.
November 9 » Several U.S. states and parts of Canada are hit by a series of blackouts lasting up to 13 hours in the Northeast blackout of 1965.
December 16 » Vietnam War: General William Westmoreland sends U.S. Secretary of Defense Robert McNamara a request for 243,000 more men by the end of 1966.
Day of death October 4, 1977
The temperature on October 4, 1977 was between 10.7 °C and 14.7 °C and averaged 12.8 °C. There was 1.0 mm of rain during 0.6 hours. There was 0.6 hours of sunshine (5%). The heavily clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from Friday, May 11, 1973 to Monday, December 19, 1977 the cabinet Den Uyl, with Drs. J.M. den Uyl (PvdA) as prime minister.
In The Netherlands , there was from Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
March 10 » Astronomers discover the rings of Uranus.
April 11 » London Transport's Silver Jubilee AEC Routemaster buses are launched.
July 20 » The Central Intelligence Agency releases documents under the Freedom of Information Act revealing it had engaged in mind-control experiments.
July 24 » End of a four-day-long Libyan–Egyptian War.
August 3 » Tandy Corporation announces the TRS-80, one of the world's first mass-produced personal computers.
August 18 » Steve Biko is arrested at a police roadblock under the Terrorism Act No. 83 of 1967 in King William's Town, South Africa. He later dies from injuries sustained during this arrest bringing attention to South Africa's apartheid policies.
When copying data from this family tree, please include a reference to the origin: hemelop, "Dijkman family tree", database, Genealogy Online (https://www.genealogieonline.nl/dijkman-stamboom/I516.php : accessed February 19, 2026), "Roelof Jacob Hartman (1935-1977)".
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