April 24 » Joshua Slocum, the first person to sail single-handedly around the world, sets sail from Boston, Massachusetts aboard the sloop "Spray".
May 25 » The Republic of Formosa is formed, with Tang Jingsong as its president.
June 27 » The inaugural run of the Baltimore and Ohio Railroad's Royal Blue from Washington, D.C., to New York City, the first U.S. passenger train to use electric locomotives.
September 18 » The Atlanta Exposition Speech on race relations is delivered by Booker T. Washington.
November 5 » George B. Selden is granted the first U.S. patent for an automobile.
November 8 » While experimenting with electricity, Wilhelm Röntgen discovers the X-ray.
Day of marriage September 5, 1919
The temperature on September 5, 1919 was between 11.0 °C and 24.1 °C and averaged 17.6 °C. There was 8.7 hours of sunshine (65%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southeast. Source: KNMI
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
May 8 » Edward George Honey proposes the idea of a moment of silence to commemorate the Armistice of 11 November 1918 which ended World War I.
June 11 » Sir Barton wins the Belmont Stakes, becoming the first horse to win the U.S. Triple Crown.
August 8 » The Anglo-Afghan Treaty of 1919 is signed. It establishes peaceful relations between Afghanistan and the UK, and confirms the Durand line as the mutual border. In return, the UK is no longer obligated to subsidize the Afghan government.
November 28 » Lady Astor is elected as a Member of the Parliament of the United Kingdom. She is the first woman to sit in the House of Commons. (Countess Markievicz, the first to be elected, refused to sit.)
December 3 » After nearly 20 years of planning and construction, including two collapses causing 89 deaths, the Quebec Bridge opens to traffic.
December 26 » Babe Ruth of the Boston Red Sox is sold to the New York Yankees by owner Harry Frazee, allegedly establishing the Curse of the Bambino superstition.
Day of death December 10, 1971
The temperature on December 10, 1971 was between 8.3 °C and 10.0 °C and averaged 9.1 °C. There was 1.1 mm of rain during 2.0 hours. The almost completely overcast was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northwest. Source: KNMI
March 26 » East Pakistan declares its independence from Pakistan to form Bangladesh and the Bangladesh Liberation War begins.
June 7 » The United States Supreme Court overturns the conviction of Paul Cohen for disturbing the peace, setting the precedent that vulgar writing is protected under the First Amendment to the United States Constitution.
September 3 » Qatar becomes an independent state.
November 28 » Wasfi al-Tal, Prime Minister of Jordan, is assassinated by the Black September unit of the Palestine Liberation Organization.
December 3 » Indo-Pakistani War of 1971: Pakistan launches a pre-emptive strike against India and a full-scale war begins.
December 4 » The PNS Ghazi, a submarine belonging to the Pakistan Navy, sinks during the course of the Indo-Pakistani Naval War of 1971.
When copying data from this family tree, please include a reference to the origin: H. Panjer, "Family tree Panjer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_panjer/I5359.php : accessed February 22, 2026), "Johannes Groenbroek (1895-1971)".
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