The temperature on April 5, 1913 was between 5.8 °C and 16.6 °C and averaged 10.3 °C. There was 8.1 hours of sunshine (61%). The average windspeed was 5 Bft (very strong wind) and was prevailing from the northeast. 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.
February 19 » Pedro Lascuráin becomes President of Mexico for 45 minutes; this is the shortest term to date of any person as president of any country.
May 30 » The Treaty of London is signed, ending the First Balkan War; Albania becomes an independent nation.
August 16 » Completion of the Royal Navy battlecruiser HMSQueen Mary.
October 9 » The steamship SSVolturno catches fire in the mid-Atlantic.
December 1 » Ford Motor Company introduces the first moving assembly line.
December 17 » A spur of the Shaker Heights streetcar line opens, the first line of the eventual Cleveland RTA Rapid Transit system.
Day of marriage May 20, 1936
The temperature on May 20, 1936 was between 8.4 °C and 19.1 °C and averaged 13.2 °C. There was 12.2 hours of sunshine (77%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
June 26 » Initial flight of the Focke-Wulf Fw 61, the first practical helicopter.
July 19 » Spanish Civil War: The CNT and UGT call a general strike in Spain - mobilizing workers' militias against the Nationalist forces.
October 9 » Boulder Dam (later Hoover Dam) begins to generate electricity and transmit it to Los Angeles.
November 8 » Spanish Civil War: Francoist troops fail in their effort to capture Madrid, but begin the 3-year Siege of Madrid afterwards.
December 7 » Australian cricketer Jack Fingleton becomes the first player to score centuries in four consecutive Test innings.
December 10 » Abdication Crisis: Edward VIII signs the Instrument of Abdication.
Day of death December 24, 1966
The temperature on December 24, 1966 was between 0.1 °C and 5.5 °C and averaged 2.7 °C. There was 9.6 mm of rain during 6.7 hours. The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west. Source: KNMI
June 8 » Topeka, Kansas, is devastated by a tornado that registers as an "F5" on the Fujita scale: The first to exceed US$100million in damages. Sixteen people are killed, hundreds more injured, and thousands of homes damaged or destroyed.
August 1 » Charles Whitman kills 16 people at the University of Texas at Austin before being killed by the police.
August 29 » Leading Egyptian thinker Sayyid Qutb is executed for plotting the assassination of President Gamal Abdel Nasser.
September 16 » The Metropolitan Opera House opens at Lincoln Center in New York City with the world premiere of Samuel Barber's opera Antony and Cleopatra.
November 30 » Barbados becomes independent from the United Kingdom.
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/I525921.php : accessed January 11, 2026), "Hemmo Zijlstra (1913-1966)".
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