March 4 » Cyclone Mahina sweeps in north of Cooktown, Queensland, with a 12 metres (39ft) wave that reaches up to 5 kilometres (3.1mi) inland, killing over 300.
March 6 » Bayer registers "Aspirin" as a trademark.
March 27 » Emilio Aguinaldo leads Filipino forces for the only time during the Philippine–American War at the Battle of Marilao River.
July 26 » Ulises Heureaux, the 27th President of the Dominican Republic, is assassinated.
July 29 » The First Hague Convention is signed.
November 29 » FC Barcelona is founded by Catalan, Spanish and Englishmen. It later develops into one of Spanish football's most iconic and strongest teams.
Day of marriage May 7, 1921
The temperature on May 7, 1921 was between 10.3 °C and 19.5 °C and averaged 14.8 °C. There was 3.3 hours of sunshine (22%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
January 9 » Greco-Turkish War: The First Battle of İnönü, the first battle of the war, begins near Eskişehir in Anatolia.
March 6 » Portuguese Communist Party is founded as the Portuguese Section of the Communist International.
March 21 » The New Economic Policy is implemented by the Bolshevik Party in response to the economic failure as a result of war communism.
April 2 » The Autonomous Government of Khorasan, a military government encompassing the modern state of Iran, is established.
October 18 » The Crimean Autonomous Soviet Socialist Republic is formed as part of the Russian Soviet Federative Socialist Republic.
November 14 » The Communist Party of Spain is founded, and issues the first edition of Mundo obrero.
Day of death October 3, 1965
The temperature on October 3, 1965 was between 7.6 °C and 16.4 °C and averaged 11.4 °C. There was 0.1 mm of rain. There was 3.7 hours of sunshine (32%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southeast. Source: KNMI
March 30 » Vietnam War: A car bomb explodes in front of the United States Embassy, Saigon, killing 22 and wounding 183 others.
April 9 » Astrodome opens. First indoor baseball game is played.
July 25 » Bob Dylan goes electric at the Newport Folk Festival, signaling a major change in folk and rock music.
August 29 » The Gemini V spacecraft returns to Earth, landing in the Atlantic Ocean.
November 24 » Joseph-Désiré Mobutu seizes power in the Democratic Republic of the Congo and becomes President; he rules the country (which he renames Zaire in 1971) for over 30 years, until being overthrown by rebels in 1997.
December 7 » Pope Paul VI and Patriarch Athenagoras I simultaneously revoke mutual excommunications that had been in place since 1054.
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/I76672.php : accessed February 10, 2026), "Tjeerd van der Heide (1899-1965)".
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