January 2 » American statesman and diplomat John Hay announces the Open Door Policy to promote trade with China.
February 27 » The British Labour Party is founded.
March 7 » The German liner SSKaiser Wilhelm der Grosse becomes the first ship to send wireless signals to shore.
April 2 » The United States Congress passes the Foraker Act, giving Puerto Rico limited self-rule.
May 29 » N'Djamena is founded as Fort-Lamy by the French commander Émile Gentil.
December 19 » Hopetoun Blunder: The first Governor-General of Australia John Hope, 7th Earl of Hopetoun, appoints Sir William Lyne premier of the new state of New South Wales, but he is unable to persuade other colonial politicians to join his government and is forced to resign.
Day of marriage July 4, 1923
The temperature on July 4, 1923 was between 11.8 °C and 22.2 °C and averaged 16.7 °C. There was 6.9 hours of sunshine (42%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west. 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.
January 1 » Britain's Railways are grouped into the Big Four: LNER, GWR, SR, and LMS.
January 9 » Juan de la Cierva makes the first autogyro flight.
March 20 » The Arts Club of Chicago hosts the opening of Pablo Picasso's first United States showing, entitled Original Drawings by Pablo Picasso, becoming an early proponent of modern art in the United States.
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 8 » Honda Point disaster: Nine US Navy destroyers run aground off the California coast. Seven are lost, and twenty-three sailors killed.
October 15 » The German Rentenmark is introduced in Germany to counter hyperinflation in the Weimar Republic.
When copying data from this family tree, please include a reference to the origin: R.A.Hemerik, "Descendants Hemerik-Broekhuizen-Huner-Koper-Barink", database, Genealogy Online (https://www.genealogieonline.nl/parenteel-hemerik/I64173.php : accessed January 27, 2026), "Hendrik Pieter Olivier (1900-)".
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