May 18 » Khodynka Tragedy: A mass panic on Khodynka Field in Moscow during the festivities of the coronation of Russian Tsar Nicholas II results in the deaths of 1,389 people.
June 4 » Henry Ford completes the Ford Quadricycle, his first gasoline-powered automobile, and gives it a successful test run.
June 15 » The deadliest tsunami in Japan's history kills more than 22,000 people.
August 27 » Anglo-Zanzibar War: The shortest war in world history (09:02 to 09:40), between the United Kingdom and Zanzibar.
August 30 » Philippine Revolution: After Spanish victory in the Battle of San Juan del Monte, eight provinces in the Philippines are declared under martial law by the Spanish Governor-General Ramón Blanco y Erenas.
November 1 » A picture showing the bare breasts of a woman appears in National Geographic magazine for the first time.
Day of death June 30, 1956
The temperature on June 30, 1956 was between 13.0 °C and 21.0 °C and averaged 16.7 °C. There was 8.2 hours of sunshine (49%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
February 20 » The United States Merchant Marine Academy becomes a permanent Service Academy.
September 13 » The IBM 305 RAMAC is introduced, the first commercial computer to use disk storage.
October 17 » The first commercial nuclear power station is officially opened by Queen Elizabeth II in Sellafield, England.
November 1 » The Indian states Kerala, Andhra Pradesh, and Mysore are formally created under the States Reorganisation Act; Kanyakumari district is joined to Tamil Nadu from Kerala.
November 4 » Soviet troops enter Hungary to end the Hungarian revolution against the Soviet Union that started on October 23. Thousands are killed, more are wounded, and nearly a quarter million leave the country.
November 13 » The Supreme Court of the United States declares Alabama laws requiring segregated buses illegal, thus ending the Montgomery Bus Boycott.
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/I70242.php : accessed October 19, 2026), "Willem Hartman (1896-1956)".
Copy warning
Genealogical publications are copyright protected. Although data is often retrieved from public archives, the searching, interpreting, collecting, selecting and sorting of the data results in a unique product. Copyright protected work may not simply be copied or republished.
Please stick to the following rules
Request permission to copy data or at least inform the author, chances are that the author gives permission, often the contact also leads to more exchange of data.
Do not use this data until you have checked it, preferably at the source (the archives).
State from whom you have copied the data and ideally also his/her original source.