The temperature on November 10, 1887 was about 6.3 °C. The air pressure was 4 kgf/m2 and came mainly from the east. The airpressure was 76 cm mercury. The atmospheric humidity was 100%. 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.
February 2 » In Punxsutawney, Pennsylvania the first Groundhog Day is observed.
April 10 » On Easter Sunday, Pope Leo XIII authorizes the establishment of the Catholic University of America.
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.
Day of marriage October 19, 1912
The temperature on October 19, 1912 was between 4.2 °C and 13.8 °C and averaged 10.0 °C. There was 4.5 mm of rain. There was 5.4 hours of sunshine (52%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
February 14 » Arizona is admitted as the 48th and the last contiguous U.S. state.
April 17 » Russian troops open fire on striking goldfield workers in northeast Siberia, killing at least 150.
May 5 » Pravda, the "voice" of the Communist Party of the Soviet Union, begins publication in Saint Petersburg.
August 6 » The Bull Moose Party meets at the Chicago Coliseum.
August 14 » U.S. Marines invade Nicaragua to support the U.S.-backed government installed there after José Santos Zelaya had resigned three years earlier.
December 6 » The Nefertiti Bust is discovered.
Day of death December 6, 1978
The temperature on December 6, 1978 was between -4.9 °C and 1.3 °C and averaged -1.9 °C. There was 6.7 hours of sunshine (84%). The almost cloudless was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east. Source: KNMI
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 31 » The Crown of St. Stephen (also known as the Holy Crown of Hungary) goes on public display after being returned to Hungary from the United States, where it was held after World War II.
February 17 » The Troubles: The Provisional IRA detonates an incendiary bomb at the La Mon restaurant, near Belfast, killing 12 and seriously injuring 30 others, all Protestants.
February 24 » The Yuba County Five disappear in California. Four of their bodies are found four months later.
March 2 » Czech Vladimír Remek becomes the first non-Russian or non-American to go into space, when he is launched aboard Soyuz 28.
June 21 » The original production of Tim Rice and Andrew Lloyd Webber's musical, Evita, based on the life of Eva Perón, opens at the Prince Edward Theatre, London.
September 15 » Muhammad Ali outpointed Leon Spinks in a rematch to become the first boxer to win the world heavyweight title three times at the Superdome in New Orleans.
When copying data from this family tree, please include a reference to the origin: Jan Kaper, "Family tree Kaper", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-kaper/I16620.php : accessed January 24, 2026), "Jan Poort (1887-1978)".
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