March 2 » United States Steel Corporation is founded as a result of a merger between Carnegie Steel Company and Federal Steel Company which became the first corporation in the world with a market capital over $1 billion.
May 3 » The Great Fire of 1901 begins in Jacksonville, Florida.
May 9 » Australia opens its first national parliament in Melbourne.
June 17 » The College Board introduces its first standardized test, the forerunner to the SAT.
October 12 » President Theodore Roosevelt officially renames the "Executive Mansion" to the White House.
November 18 » Britain and the United States sign the Hay–Pauncefote Treaty, which nullifies the Clayton–Bulwer Treaty and withdraws British objections to an American-controlled canal in Panama.
Day of marriage February 20, 1930
The temperature on February 20, 1930 was between -2.9 °C and 8.0 °C and averaged 1.3 °C. There was 4.1 hours of sunshine (40%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
February 18 » While studying photographs taken in January, Clyde Tombaugh discovers Pluto.
March 29 » Heinrich Brüning is appointed German Reichskanzler.
April 18 » The British Broadcasting Corporation announced that "there is no news" in their evening report.
April 22 » The United Kingdom, Japan and the United States sign the London Naval Treaty regulating submarine warfare and limiting shipbuilding.
May 1 » "Pluto" is officially proposed for the name of the newly-discovered dwarf planet Pluto by Vesto Slipher in the Lowell Observatory Observation Circular. The name quickly catches on.
June 9 » A Chicago Tribune reporter, Jake Lingle, is killed during rush hour at the Illinois Central train station by Leo Vincent Brothers, allegedly over a $100,000 gambling debt owed to Al Capone.
Day of death June 30, 1968
The temperature on June 30, 1968 was between 10.0 °C and 25.3 °C and averaged 19.0 °C. There was 0.1 mm of rain. There was 13.6 hours of sunshine (81%). The almost cloudless was. The average windspeed was 1 Bft (weak wind) and was prevailing from the south-southeast. Source: KNMI
January 22 » Operation Igloo White, a US electronic surveillance system to stop communist infiltration into South Vietnam begins installation.
January 31 » Vietnam War: Viet Cong guerrillas attack the United States embassy in Saigon, and other attacks, in the early morning hours, later grouped together as the Tet Offensive.
February 24 » Vietnam War: The Tet Offensive is halted; South Vietnam recaptures Hué.
April 7 » Motor racing world champion Jim Clark is killed in an accident during a Formula Two race at Hockenheim.
July 8 » The Chrysler wildcat strike begins in Detroit, Michigan.
October 14 » The first live TV broadcast by American astronauts in orbit is performed by the Apollo 7 crew.
When copying data from this family tree, please include a reference to the origin: W.J.G. Eussen, "Family tree Eussen", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eussen/I1263.php : accessed October 13, 2026), "Jan Willem RAMACKERS (1901-1968)".
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