January 18 » An X-ray generating machine is exhibited for the first time by H. L. Smith.
February 1 » La bohème premieres in Turin at the Teatro Regio (Turin), conducted by the young Arturo Toscanini.
April 6 » In Athens, the opening of the first modern Olympic Games is celebrated, 1,500 years after the original games are banned by Roman emperor Theodosius I.
April 15 » Closing ceremony of the Games of the I Olympiad in Athens, Greece.
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.
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.
Day of marriage June 29, 1922
The temperature on June 29, 1922 was between 8.2 °C and 16.9 °C and averaged 12.3 °C. There was 3.7 mm of rain. There was 7.9 hours of sunshine (47%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west. 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.
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.
March 20 » The USSLangley is commissioned as the first United States Navy aircraft carrier.
April 7 » The United States Secretary of the Interior leases federal petroleum reserves to private oil companies on excessively generous terms.
June 28 » The Irish Civil War begins with the shelling of the Four Courts in Dublin by Free State forces.
July 15 » Japanese Communist Party is established in Japan.
August 2 » A typhoon hits Shantou, Republic of China, killing more than 50,000 people.
November 24 » Nine Irish Republican Army members are executed by an Irish Free State firing squad. Among them is author Erskine Childers, who had been arrested for illegally carrying a revolver.
Day of death May 1, 1972
The temperature on May 1, 1972 was between 6.5 °C and 19.5 °C and averaged 13.7 °C. There was -0.1 mm of rain. There was 11.2 hours of sunshine (75%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northwest. Source: KNMI
In The Netherlands , there was from April 5, 1967 to Tuesday, July 6, 1971 the cabinet Biesheuvel I, with Mr. B.W. Biesheuvel (ARP) as prime minister.
In The Netherlands , there was from Thursday, July 20, 1972 to Friday, May 11, 1973 the cabinet Biesheuvel II, with Mr. B.W. Biesheuvel (ARP) as prime minister.
January 20 » Pakistan launched its nuclear weapons program, a few weeks after its defeat in the Bangladesh Liberation War, as well as the Indo-Pakistani War of 1971.
May 13 » Faulty electrical wiring ignites a fire underneath the Playtown Cabaret in Osaka, Japan. Blocked exits and non-functional elevators lead to 118 fatalities, with many victims leaping to their deaths.
June 9 » Severe rainfall causes a dam in the Black Hills of South Dakota to burst, creating a flood that kills 238 people and causes $160million in damage.
September 15 » A Scandinavian Airlines System domestic flight from Gothenburg to Stockholm is hijacked and flown to Malmö Bulltofta Airport.
September 30 » Roberto Clemente records the 3,000th and final hit of his career.
December 8 » United Airlines Flight 553, a Boeing 737, crashes after aborting its landing attempt at Chicago Midway International Airport, killing 45. This is the first-ever loss of a Boeing 737.
When copying data from this family tree, please include a reference to the origin: Eva Drenth, "Family tree Diverse", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-drenth/I22197.php : accessed March 15, 2026), "Willem de Graaf (1896-1972)".
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.