February 6 » The Permanent Court of Arbitration, an international arbitration court at The Hague, is created when the Senate of the Netherlands ratifies an 1899 peace conference decree.
May 22 » The Associated Press is formed in New York City as a non-profit news cooperative.
July 2 » Jean Sibelius' Finlandia receives its première performance in Helsinki with the Helsinki Philharmonic Society conducted by Robert Kajanus.
July 19 » The first line of the Paris Métro opens for operation.
August 14 » The Eight-Nation Alliance occupies Beijing, China, in a campaign to end the bloody Boxer Rebellion in China.
December 14 » Quantum mechanics: Max Planck presents a theoretical derivation of his black-body radiation law.
Day of death December 31, 1970
The temperature on December 31, 1970 was between -11.6 °C and 1.0 °C and averaged -4.9 °C. There was 0.2 mm of rain during 0.1 hours. There was 4.8 hours of sunshine (62%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northwest. Source: KNMI
April 17 » Apollo program: The ill-fated Apollo 13 spacecraft returns to Earth safely.
July 23 » Qaboos bin Said al Said becomes Sultan of Oman after overthrowing his father, Said bin Taimur initiating massive reforms, modernization programs and end to a decade long civil war.
September 19 » Michael Eavis hosts the first Glastonbury Festival.
November 9 » Vietnam War: The Supreme Court of the United States votes 6–3 against hearing a case to allow Massachusetts to enforce its law granting residents the right to refuse military service in an undeclared war.
November 14 » Soviet Union enters ICAO, making Russian the fourth official language of organization.
November 21 » Vietnam War: Operation Ivory Coast: A joint United States Air Force and Army team raids the Sơn Tây prisoner-of-war camp in an attempt to free American prisoners of war thought to be held there.
When copying data from this family tree, please include a reference to the origin: Dirk Ham, "Family tree Ham en Dallinga", database, Genealogy Online (https://www.genealogieonline.nl/ham-stamboom/I6859.php : accessed March 15, 2026), "Ludolf Jan Zandt (1900-1970)".
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.