The temperature on February 17, 1912 was between 4.7 °C and 13.7 °C and averaged 8.5 °C. There was 0.1 mm of rain. There was 4.6 hours of sunshine (46%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southeast. Source: KNMI
January 4 » The Scout Association is incorporated throughout the British Empire by royal charter.
January 6 » New Mexico is admitted to the Union as the 47th U.S. state.
January 23 » The International Opium Convention is signed at The Hague.
March 6 » Italo-Turkish War: Italian forces become the first to use airships in war, as two dirigibles drop bombs on Turkish troops encamped at Janzur, from an altitude of 6,000 feet.
August 14 » U.S. Marines invade Nicaragua to support the U.S.-backed government installed there after José Santos Zelaya had resigned three years earlier.
October 7 » The Helsinki Stock Exchange sees its first transaction.
Day of marriage May 8, 1939
The temperature on May 8, 1939 was between 7.2 °C and 14.0 °C and averaged 11.0 °C. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from June 24, 1937 to July 25, 1939 the cabinet Colijn IV, with Dr. H. Colijn (ARP) as prime minister.
In The Netherlands , there was from July 25, 1939 to August 10, 1939 the cabinet Colijn V, with Dr. H. Colijn (ARP) as prime minister.
In The Netherlands , there was from August 10, 1939 to September 3, 1940 the cabinet De Geer II, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
January 13 » The Black Friday bushfires burn 20,000 square kilometers of land in Australia, claiming the lives of 71 people.
September 1 » General George C. Marshall becomes Chief of Staff of the United States Army.
September 2 » World War II: Following the start of the invasion of Poland the previous day, the Free City of Danzig (now Gdańsk, Poland) is annexed by Nazi Germany.
September 17 » World War II: The Soviet invasion of Poland begins.
November 4 » World War II: U.S. President Franklin D. Roosevelt orders the United States Customs Service to implement the Neutrality Act of 1939, allowing cash-and-carry purchases of weapons by belligerents.
November 30 » Winter War: Soviet forces cross the Finnish border in several places and bomb Helsinki and several other Finnish cities, starting the war.
Day of death April 28, 1999
The temperature on April 28, 1999 was between 8.2 °C and 18.4 °C and averaged 12.4 °C. There was 11.8 hours of sunshine (80%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
January 21 » War on Drugs: In one of the largest drug busts in American history, the United States Coast Guard intercepts a ship with over 4,300 kilograms (9,500lb) of cocaine on board.
March 29 » A magnitude 6.8 earthquake in India strikes the Chamoli district in Uttar Pradesh, killing 103.
June 12 » Kosovo War: Operation Joint Guardian begins when a NATO-led United Nations peacekeeping force (KFor) enters the province of Kosovo in Federal Republic of Yugoslavia.
July 1 » The Scottish Parliament is officially opened by Elizabeth II on the day that legislative powers are officially transferred from the old Scottish Office in London to the new devolved Scottish Executive in Edinburgh. In Wales, the powers of the Welsh Secretary are transferred to the National Assembly.
October 31 » Yachtsman Jesse Martin returns to Melbourne after 11 months of circumnavigating the world, solo, non-stop and unassisted.
November 8 » Bruce Miller is killed at his junkyard near Flint, Michigan. His wife Sharee Miller, who convinced her online lover Jerry Cassaday to kill him (before later killing himself) was convicted of the crime, in what became the world's first Internet murder.
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/I121889.php : accessed October 15, 2026), "Roelf Datema (1912-1999)".
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