January 24 » Second Boer War: Boers stop a British attempt to break the Siege of Ladysmith in the Battle of Spion Kop.
January 31 » Datu Muhammad Salleh is killed in Kampung Teboh, Tambunan, ending the Mat Salleh Rebellion.
February 6 » The Permanent Court of Arbitration, an international arbitration court at The Hague, is created when the Senate of the Netherlands ratifies an 1899 peace conference decree.
April 14 » The Exposition Universelle begins.
May 18 » The United Kingdom proclaims a protectorate over Tonga.
July 2 » The first Zeppelin flight takes place on Lake Constance near Friedrichshafen, Germany.
Day of death June 27, 1961
The temperature on June 27, 1961 was between 9.5 °C and 18.1 °C and averaged 14.5 °C. There was 4.2 mm of rain during 5.7 hours. There was 5.2 hours of sunshine (31%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northwest. Source: KNMI
March 29 » The Twenty-third Amendment to the United States Constitution is ratified, allowing residents of Washington, D.C., to vote in presidential elections.
May 5 » Alan Shepard becomes the first American to travel into outer space, on a sub-orbital flight.
June 4 » Cold War: In the Vienna summit, the Soviet premier Nikita Khrushchev sparks the Berlin Crisis by threatening to sign a separate peace treaty with East Germany and ending American, British and French access to East Berlin.
August 13 » Cold War: East Germany closes the border between the eastern and western sectors of Berlin to thwart its inhabitants' attempts to escape to the West, and construction of the Berlin Wall is started.
September 1 » The first conference of the Non-Aligned Countries is held in Belgrade, Yugoslavia.
September 12 » The African and Malagasy Union is founded.
When copying data from this family tree, please include a reference to the origin: W.H. Overmars, "Family tree Overmars", database, Genealogy Online (https://www.genealogieonline.nl/overmars-stamboom/R145.php : accessed January 9, 2026), "Gerardus Marinus overmars (1900-1961)".
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