The temperature on February 2, 1887 was about 6.2 °C. The air pressure was 2 kgf/m2 and came mainly from the south-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 68%. Source: KNMI
In The Netherlands , there was from April 23, 1884 to April 21, 1888 the cabinet Heemskerk, with Mr. J. Heemskerk Azn. (conservatief) as prime minister.
June 8 » Herman Hollerith applies for US patent #395,781 for the 'Art of Compiling Statistics', which was his punched card calculator.
June 23 » The Rocky Mountains Park Act becomes law in Canada creating the nation's first national park, Banff National Park.
July 6 » David Kalākaua, monarch of the Kingdom of Hawaii, is forced to sign the Bayonet Constitution, which transfers much of the king's authority to the Legislature of the Kingdom of Hawaii.
July 26 » Publication of the Unua Libro, founding the Esperanto movement.
September 5 » A fire at the Theatre Royal, Exeter, kills 186.
November 13 » Bloody Sunday clashes in central London.
Day of marriage May 4, 1911
The temperature on May 4, 1911 was between 4.0 °C and 14.5 °C and averaged 9.9 °C. There was 9.5 mm of rain. There was 7.7 hours of sunshine (51%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
January 29 » Mexican Revolution: Mexicali is captured by the Mexican Liberal Party, igniting the Magonista rebellion of 1911.
February 18 » The first official flight with airmail takes place from Allahabad, United Provinces, British India (now India), when Henri Pequet, a 23-year-old pilot, delivers 6,500 letters to Naini, about 10 kilometres (6.2mi) away.
May 9 » The works of Gabriele D'Annunzio are placed in the Index of Forbidden Books by the Vatican.
May 23 » The New York Public Library is dedicated.
September 18 » Russian Premier Pyotr Stolypin is shot at the Kiev Opera House.
September 25 » An explosion of badly degraded propellant charges on board the French battleship Liberté detonates the forward ammunition magazines and destroys the ship.
Day of death September 30, 1956
The temperature on September 30, 1956 was between 7.2 °C and 17.4 °C and averaged 14.0 °C. There was 1.4 mm of rain during 3.9 hours. There was 3.5 hours of sunshine (30%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
March 9 » Soviet forces suppress mass demonstrations in the Georgian SSR, reacting to Nikita Khrushchev's de-Stalinization policy.
September 13 » The IBM 305 RAMAC is introduced, the first commercial computer to use disk storage.
October 29 » Suez Crisis begins: Israeli forces invade the Sinai Peninsula and push Egyptian forces back toward the Suez Canal.
November 1 » The Springhill mining disaster in Springhill, Nova Scotia kills 39 miners; 88 are rescued.
November 7 » Suez Crisis: The United Nations General Assembly adopts a resolution calling for the United Kingdom, France and Israel to immediately withdraw their troops from Egypt.
December 9 » Trans-Canada Air Lines Flight 810, a Canadair North Star, crashes near Hope, British Columbia, Canada, killing all 62 people on board.
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/I301335.php : accessed February 23, 2026), "Harm Weggemans (1887-1956)".
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