February 28 » Queen Ranavalona III, the last monarch of Madagascar, is deposed by a French military force.
June 16 » A treaty annexing the Republic of Hawaii to the United States is signed; the Republic would not be dissolved until a year later.
July 11 » Salomon August Andrée leaves Spitsbergen to attempt to reach the North Pole by balloon. He later crashes and dies.
August 10 » German chemist Felix Hoffmann discovers an improved way of synthesizing acetylsalicylic acid (aspirin).
August 21 » Oldsmobile, an American automobile manufacturer and marque, is founded.
August 31 » Thomas Edison patents the Kinetoscope, the first movie projector.
Day of marriage May 17, 1923
The temperature on May 17, 1923 was between 3.0 °C and 10.3 °C and averaged 6.0 °C. There was 8.6 mm of rain. There was 5.4 hours of sunshine (34%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
In The Netherlands , there was from September 19, 1922 to August 4, 1925 the cabinet Ruys de Beerenbrouck II, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
March 3 » TIME magazine is published for the first time.
July 1 » The Parliament of Canada suspends all Chinese immigration.
August 16 » The United Kingdom gives the name "Ross Dependency" to part of its claimed Antarctic territory and makes the Governor-General of the Dominion of New Zealand its administrator.
August 18 » First British Track and Field championships for women, London.
August 23 » Captain Lowell Smith and Lieutenant John P. Richter performed the first mid-air refueling on De Havilland DH-4B, setting an endurance flight record of 37 hours.
September 7 » The International Criminal Police Organization (INTERPOL) is formed.
Day of death February 28, 1981
The average temperature on February 28, 1981 was 1.4 °C. There was 8.6 mm of rain during 7.7 hours. The heavily clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east-southeast. Source: KNMI
In The Netherlands , there was from Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
In The Netherlands , there was from Friday, September 11, 1981 to Saturday, May 29, 1982 the cabinet Van Agt II, with Mr. A.A.M. van Agt (CDA) as prime minister.
January 28 » Ronald Reagan lifts remaining domestic petroleum price and allocation controls in the United States helping to end the 1979 energy crisis and begin the 1980s oil glut.
April 14 » STS-1: The first operational Space Shuttle, Columbia completes its first test flight.
August 5 » President Ronald Reagan fires 11,359 striking air-traffic controllers who ignored his order for them to return to work.
August 30 » President Mohammad-Ali Rajai and Prime Minister Mohammad-Javad Bahonar of Iran are assassinated in a bombing committed by the People's Mujahedin of Iran.
October 14 » Vice President Hosni Mubarak is elected as the President of Egypt, one week after the assassination of Anwar Sadat.
November 12 » Space Shuttle program: Mission STS-2, utilizing the Space Shuttle Columbia, marks the first time a manned spacecraft is launched into space twice.
When copying data from this family tree, please include a reference to the origin: A.R. Hamstra, "Family tree Hamstra - Spanjer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-hamstra-spanjer/R159.php : accessed October 25, 2026), "gerrit Hamstra (1897-1981)".
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