March 16 » In Melbourne the representatives of five colonies adopted a constitution, which would become the basis of the Commonwealth of Australia.
May 8 » The first games of the Italian football league system are played.
June 21 » The United States captures Guam from Spain. The few warning shots fired by the U.S. naval vessels are misinterpreted as salutes by the Spanish garrison, which was unaware that the two nations were at war.
August 23 » The Southern Cross Expedition, the first British venture of the Heroic Age of Antarctic Exploration, departs from London.
September 13 » Hannibal Goodwin patents celluloid photographic film.
October 14 » The steam ship SSMohegan sinks near the Lizard peninsula, Cornwall, killing 106.
Day of marriage September 9, 1919
The temperature on September 9, 1919 was between 9.9 °C and 21.9 °C and averaged 15.6 °C. There was 8.3 hours of sunshine (63%). The average windspeed was 2 Bft (weak wind) 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 5 » The German Workers' Party, which would become the Nazi Party, is founded in Munich.
January 15 » Great Molasses Flood: A wave of molasses released from an exploding storage tank sweeps through Boston, Massachusetts, killing 21 and injuring 150.
January 18 » Ignacy Jan Paderewski becomes Prime Minister of the newly independent Poland.
March 2 » The first Communist International meets in Moscow.
May 27 » The NC-4 aircraft arrives in Lisbon after completing the first transatlantic flight.
August 11 » Germany's Weimar Constitution is signed into law.
When copying data from this family tree, please include a reference to the origin: Ferry Posthuma Scholtes, "Family tree Posthuma", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-posthuma/R912.php : accessed September 29, 2026), "Maria Petronella Johanna Posthuma (1898-????)".
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