The temperature on May 1, 1930 was between 3.0 °C and 16.7 °C and averaged 10.2 °C. There was 6.0 hours of sunshine (40%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
February 18 » Elm Farm Ollie becomes the first cow to fly in a fixed-wing aircraft and also the first cow to be milked in an aircraft.
May 27 » The 1,046 feet (319m) Chrysler Building in New York City, the tallest man-made structure at the time, opens to the public.
September 8 » 3M begins marketing Scotch transparent tape.
September 27 » Bobby Jones wins the (pre-Masters) Grand Slam of golf.
December 2 » Great Depression: In a State of the Union message, U.S. President Herbert Hoover proposes a $150 million (equivalent to $2,296,000,000 in 2019) public works program to help generate jobs and stimulate the economy.
December 29 » Sir Muhammad Iqbal's presidential address in Allahabad introduces the two-nation theory and outlines a vision for the creation of Pakistan.
Day of death May 20, 1984
The temperature on May 20, 1984 was between 7.7 °C and 16.4 °C and averaged 11.3 °C. There was 9.6 mm of rain during 5.7 hours. There was 3.2 hours of sunshine (20%). The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-southeast. 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.
January 1 » The original American Telephone & Telegraph Company is divested of its 22 Bell System companies as a result of the settlement of the 1974 United States Department of Justice antitrust suit against AT&T.
June 3 » Operation Blue Star, a military offensive, is launched by the Indian government at Harmandir Sahib, also known as the Golden Temple, the holiest shrine for Sikhs, in Amritsar. The operation continues until June 6, with casualties, most of them civilians, in excess of 5,000.
June 8 » Homosexuality is declared legal in the Australian state of New South Wales.
September 2 » Seven people are shot and killed and 12 wounded in the Milperra massacre, a shootout between the rival motorcycle gangs Bandidos and Comancheros in Sydney, Australia.
November 25 » Thirty-six top musicians gather in a Notting Hill studio and record Band Aid's "Do They Know It's Christmas?" in order to raise money for famine relief in Ethiopia.
November 27 » Under the Brussels Agreement signed between the governments of the United Kingdom and Spain, the former agreed to enter into discussions with Spain over Gibraltar, including sovereignty.
When copying data from this family tree, please include a reference to the origin: Hendrik Dreyer, "Dreyer Tree", database, Genealogy Online (https://www.genealogieonline.nl/dreyer-tree/I5480.php : accessed January 18, 2026), "Jacobus Nicolaas de Kock b2c6d5e4f3g8h3 (1930-1984)".
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