The temperature on April 11, 1886 was about 7.0 °C. The air pressure was 4 kgf/m2 and came mainly from the east-northeast. The airpressure was 75 cm mercury. The atmospheric humidity was 78%. 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.
May 5 » The Bay View massacre: A militia fires into a crowd of protesters in Milwaukee, killing seven.
June 10 » Mount Tarawera in New Zealand erupts, killing 153 people and burying the famous Pink and White Terraces. Eruptions continue for three months creating a large, 17km long fissure across the mountain peak.
July 4 » The Canadian Pacific Railway's first scheduled train from Montreal arrives in Port Moody on the Pacific coast, after six days of travel.
August 31 » The 7.0 Mw Charleston earthquake affects southeastern South Carolina with a maximum Mercalli intensity of X (Extreme). Sixty people killed with damage estimated at $5–6 million.
October 28 » President Cleveland dedicates the Statue of Liberty.
November 27 » German judge Emil Hartwich sustains fatal injuries in a duel, which would become the background for Theodor Fontane's Effi Briest.
Day of death April 11, 1977
The temperature on April 11, 1977 was between 1.2 °C and 8.8 °C and averaged 4.1 °C. There was 1.4 mm of rain during 0.9 hours. There was 3.5 hours of sunshine (26%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-northwest. 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.
January 8 » Three bombs explode in Moscow, Russia, Soviet Union, within 37 minutes, killing seven. The bombings are attributed to an Armenian separatist group.
March 2 » Libya becomes the Socialist People's Libyan Arab Jamahiriya as the General People's Congress adopted the "Declaration on the Establishment of the Authority of the People".
April 22 » Optical fiber is first used to carry live telephone traffic.
August 26 » The Charter of the French Language is adopted by the National Assembly of Quebec
September 12 » South African anti-apartheid activist Steve Biko dies in police custody.
November 14 » During a British House of Commons debate, Labour MP Tam Dalyell poses what would become known as the West Lothian question, referring to issues related to devolution in the United Kingdom.
When copying data from this family tree, please include a reference to the origin: Hendrik de Graaf, "Family tree Plugboer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-plugboer/I7012.php : accessed January 27, 2026), "Immetje Kool (1886-1977)".
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