July 11 » Salomon August Andrée leaves Spitsbergen to attempt to reach the North Pole by balloon. He later crashes and dies.
August 2 » Anglo-Afghan War: The Siege of Malakand ends when a relief column is able to reach the British garrison in the Malakand states.
August 10 » German chemist Felix Hoffmann discovers an improved way of synthesizing acetylsalicylic acid (aspirin).
September 10 » Lattimer massacre: A sheriff's posse kills 19 unarmed striking immigrant miners in Lattimer, Pennsylvania, United States.
September 11 » After months of pursuit, generals of Menelik II of Ethiopia capture Gaki Sherocho, the last king of Kaffa, bringing an end to that ancient kingdom.
December 30 » The British Colony of Natal annexes Zululand.
Day of marriage April 30, 1919
The temperature on April 30, 1919 was between 2.3 °C and 9.8 °C and averaged 5.7 °C. There was 9.1 mm of rain. There was 1.7 hours of sunshine (11%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north. 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 7 » Montenegrin guerrilla fighters rebel against the planned annexation of Montenegro by Serbia, but fail.
January 15 » Great Molasses Flood: A wave of molasses released from an exploding storage tank sweeps through Boston, Massachusetts, killing 21 and injuring 150.
July 27 » The Chicago Race Riot erupts after a racial incident occurred on a South Side beach, leading to 38 fatalities and 537 injuries over a five-day period.
September 11 » United States Marine Corps invades Honduras.
November 11 » The Industrial Workers of the World attack an Armistice Day parade in Centralia, Washington, ultimately resulting in the deaths of five people.
December 23 » Sex Disqualification (Removal) Act 1919 becomes law in the United Kingdom.
When copying data from this family tree, please include a reference to the origin: Peter Keesman, "Family tree Keesman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-keesman/I27093.php : accessed February 27, 2026), "Simon Slikker (1897-????)".
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