January 4 » Utah is admitted as the 45th U.S. state.
March 1 » Battle of Adwa: An Ethiopian army defeats an outnumbered Italian force, ending the First Italo-Ethiopian War.
March 1 » Henri Becquerel discovers radioactive decay.
April 15 » Closing ceremony of the Games of the I Olympiad in Athens, Greece.
July 28 » The city of Miami, Florida is incorporated.
August 30 » Philippine Revolution: After Spanish victory in the Battle of San Juan del Monte, eight provinces in the Philippines are declared under martial law by the Spanish Governor-General Ramón Blanco y Erenas.
Day of death December 23, 1977
The temperature on December 23, 1977 was between 6.0 °C and 14.9 °C and averaged 9.6 °C. There was 0.8 mm of rain during 1.5 hours. The almost completely overcast was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south. 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.
February 18 » The Space Shuttle Enterprise test vehicle is carried on its maiden "flight" on top of a Boeing 747.
April 28 » The Red Army Faction trial ends, with Andreas Baader, Gudrun Ensslin and Jan-Carl Raspe found guilty of four counts of murder and more than 30 counts of attempted murder.
July 11 » Martin Luther King, Jr. is posthumously awarded the Presidential Medal of Freedom.
September 5 » Voyager Program: NASA launches the Voyager 1 spacecraft.
September 12 » South African anti-apartheid activist Steve Biko dies in police custody.
December 1 » Pinwheel is launched, which is now Nickelodeon.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I145462.php : accessed October 10, 2026), "Hendrik de Roos (1896-1977)".
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