The temperature on September 6, 1889 was about 19.3 °C. The air pressure was 14 kgf/m2 and came mainly from the northeast. The airpressure was 77 cm mercury. The atmospheric humidity was 57%. Source: KNMI
February 9 » US president Grover Cleveland signs a bill elevating the United States Department of Agriculture to a Cabinet-level agency.
February 11 » Meiji Constitution of Japan is adopted.
February 22 » President Grover Cleveland signs a bill admitting North Dakota, South Dakota, Montana and Washington as U.S. states.
June 26 » Bangui is founded by Albert Dolisie and Alfred Uzac in what was then the upper reaches of the French Congo.
June 29 » Hyde Park and several other Illinois townships vote to be annexed by Chicago, forming the largest United States city in area and second largest in population at the time.
July 8 » The first issue of The Wall Street Journal is published.
Day of marriage April 20, 1928
The temperature on April 20, 1928 was between -1.1 °C and 8.9 °C and averaged 4.0 °C. There was 5.4 mm of rain. There was 4.9 hours of sunshine (35%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
June 8 » Second Northern Expedition: The National Revolutionary Army captures Peking, whose name is changed to Beijing ("Northern Capital").
June 18 » Aviator Amelia Earhart becomes the first woman to fly in an aircraft across the Atlantic Ocean (she is a passenger; Wilmer Stultz is the pilot and Lou Gordon the mechanic).
September 1 » Ahmet Zogu declares Albania to be a monarchy and proclaims himself king.
October 2 » The "Prelature of the Holy Cross and the Work of God", commonly known as Opus Dei, is founded.
October 12 » An iron lung respirator is used for the first time at Children's Hospital, Boston.
November 12 » SSVestris sinks approximately 200 miles (320km) off Hampton Roads, Virginia, killing at least 110 passengers, mostly women and children who die after the vessel is abandoned.
Day of death January 11, 1961
The temperature on January 11, 1961 was between -2.6 °C and 5.4 °C and averaged 1.1 °C. There was 7.2 hours of sunshine (89%). The almost cloudless was. The average windspeed was 1 Bft (weak wind) and was prevailing from the north-northwest. Source: KNMI
February 3 » The United States Air Forces begins Operation Looking Glass, and over the next 30 years, a "Doomsday Plane" is always in the air, with the capability of taking direct control of the United States' bombers and missiles in the event of the destruction of the SAC's command post.
March 9 » Sputnik 9 successfully launches, carrying a dog and a human dummy, and demonstrating that the Soviet Union was ready to begin human spaceflight.
April 9 » The Pacific Electric Railway in Los Angeles, once the largest electric railway in the world, ends operations.
September 18 » U.N. Secretary-General Dag Hammarskjöld dies in an air crash while attempting to negotiate peace in the Katanga region of the Democratic Republic of the Congo.
October 27 » NASA tests the first Saturn I rocket in Mission Saturn-Apollo 1.
November 18 » United States President John F. Kennedy sends 18,000 military advisors to South Vietnam.
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/I8733.php : accessed February 18, 2026), "Laurens Maats (1889-1961)".
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