The temperature on April 1, 1884 was about 10.9 °C. The air pressure was 2 kgf/m2 and came mainly from the south-southeast. The airpressure was 76 cm mercury. The atmospheric humidity was 71%. Source: KNMI
In The Netherlands , there was from April 23, 1884 to April 21, 1888 the cabinet Heemskerk, with Mr. J. Heemskerk Azn. (conservatief) as prime minister.
February 19 » More than sixty tornadoes strike the Southern United States, one of the largest tornado outbreaks in U.S. history.
March 13 » The Siege of Khartoum begins. It lasts until January 26, 1885.
April 20 » Pope Leo XIII publishes the encyclical Humanum genus.
May 1 » The Federation of Organized Trades and Labor Unions demands the eight-hour work day in the United States.
July 3 » Dow Jones & Company publishes its first stock average.
December 10 » Mark Twain's Adventures of Huckleberry Finn is published.
Day of marriage May 18, 1907
The temperature on May 18, 1907 was between 1.8 °C and 10.8 °C and averaged 6.0 °C. There was 4.6 mm of rain. There was 5.0 hours of sunshine (32%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
In The Netherlands , there was from August 17, 1905 to February 11, 1908 the cabinet De Meester, with Mr. Th. de Meester (unie-liberaal) as prime minister.
January 6 » Maria Montessori opens her first school and daycare center for working class children in Rome, Italy.
September 30 » The McKinley National Memorial, the final resting place of assassinated U.S. President William McKinley and his family, is dedicated in Canton, Ohio.
October 22 » A run on the stock of the Knickerbocker Trust Company sets events in motion that will spark the Panic of 1907.
November 7 » Jesús García saves the entire town of Nacozari de García by driving a burning train full of dynamite six kilometers (3.7 miles) away before it can explode.
November 16 » Cunard Line's RMSMauretania, sister ship of RMSLusitania, sets sail on her maiden voyage from Liverpool, England, to New York City.
December 16 » The American Great White Fleet begins its circumnavigation of the world.
Day of death May 18, 1969
The temperature on May 18, 1969 was between 5.0 °C and 11.7 °C and averaged 8.1 °C. There was 6.7 mm of rain during 3.2 hours. There was 4.5 hours of sunshine (28%). The partly or heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northwest. Source: KNMI
January 18 » United Airlines Flight 266 crashes into Santa Monica Bay killing all 32 passengers and six crew members.
May 13 » May 13 Incident involving sectarian violence in Kuala Lumpur, Malaysia.
July 19 » Chappaquiddick incident: U.S. Senator Ted Kennedy crashes his car into a tidal pond at Chappaquiddick Island, Massachusetts, killing his passenger Mary Jo Kopechne.
October 1 » Concorde breaks the sound barrier for the first time.
November 20 » Vietnam War: The Plain Dealer (Cleveland, Ohio) publishes explicit photographs of dead villagers from the My Lai Massacre in Vietnam.
December 9 » U.S. Secretary of State William P. Rogers proposes his plan for a ceasefire in the War of Attrition; Egypt and Jordan accept it over the objections of the PLO, which leads to civil war in Jordan in September 1970.
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/I60218.php : accessed October 10, 2026), "Jantje van der Werf (1884-1969)".
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