April 14 » The Pan-American Union is founded by the First International Conference of American States in Washington, D.C.
July 2 » The U.S. Congress passes the Sherman Antitrust Act.
August 7 » Anna Månsdotter became the last woman to be executed in Sweden for the 1889 Yngsjö murder.
September 12 » Salisbury, Rhodesia, is founded.
November 23 » King William III of the Netherlands dies without a male heir and a special law is passed to allow his daughter Princess Wilhelmina to succeed him.
December 15 » Hunkpapa Lakota leader Sitting Bull is killed on Standing Rock Indian Reservation, leading to the Wounded Knee Massacre.
Day of marriage September 11, 1909
The temperature on September 11, 1909 was between 11.2 °C and 21.2 °C and averaged 15.9 °C. There was 9.6 hours of sunshine (74%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south east. Source: KNMI
February 12 » New Zealand's worst maritime disaster of the 20th century happens when the SSPenguin, an inter-island ferry, sinks and explodes at the entrance to Wellington Harbour.
March 31 » Serbia formally withdraws its opposition to Austro-Hungarian actions in the Bosnian Crisis.
April 6 » Robert Peary and Matthew Henson become the first people to reach the North Pole; Peary's claim has been disputed because of failings in his navigational ability.
April 18 » Joan of Arc is beatified in Rome.
May 31 » The National Negro Committee, forerunner to the National Association for the Advancement of Colored People (NAACP), convenes for the first time.
July 16 » Persian Constitutional Revolution: Mohammad Ali Shah Qajar is forced out as Shah of Persia and is replaced by his son Ahmad Shah Qajar.
Day of death December 25, 1956
The temperature on December 25, 1956 was between -4.0 °C and -0.1 °C and averaged -2.0 °C. There was 2.4 hours of sunshine (31%). The partly or heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east. Source: KNMI
March 1 » The International Air Transport Association finalizes a draft of the Radiotelephony spelling alphabet for the International Civil Aviation Organization.
April 3 » Hudsonville–Standale tornado: The western half of the Lower Peninsula of Michigan is struck by a deadly F5 tornado.
August 6 » After going bankrupt in 1955, the American broadcaster DuMont Television Network makes its final broadcast, a boxing match from St. Nicholas Arena in New York in the Boxing from St. Nicholas Arena series.
November 5 » Suez Crisis: British and French paratroopers land in Egypt after a week-long bombing campaign.
November 7 » Suez Crisis: The United Nations General Assembly adopts a resolution calling for the United Kingdom, France and Israel to immediately withdraw their troops from Egypt.
December 12 » United Nations Security Council Resolution 121 relating to acceptance of Japan to United Nations is adopted.
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/I81659.php : accessed December 29, 2025), "Johannes de Graaf (1890-1956)".
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