January 2 » American statesman and diplomat John Hay announces the Open Door Policy to promote trade with China.
February 28 » The Second Boer War: The 118-day "Siege of Ladysmith" is lifted.
April 30 » Hawaii becomes a territory of the United States, with Sanford B. Dole as governor.
August 14 » The Eight-Nation Alliance occupies Beijing, China, in a campaign to end the bloody Boxer Rebellion in China.
November 7 » The People's Party is founded in Cuba.
December 14 » Quantum mechanics: Max Planck presents a theoretical derivation of his black-body radiation law.
Day of marriage April 30, 1928
The temperature on April 30, 1928 was between 10.3 °C and 15.0 °C and averaged 13.0 °C. There was 2.0 mm of rain. There was 0.4 hours of sunshine (3%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east-southeast. Source: KNMI
April 12 » The Bremen, a German Junkers W 33 type aircraft, takes off for the first successful transatlantic aeroplane flight from east to west.
May 3 » The Jinan incident begins with the deaths of twelve Japanese civilians by Chinese forces in Jinan, China, which leads to Japanese retaliation and the deaths of over 2,000 Chinese civilians in the following days.
October 1 » The Soviet Union introduces its first five-year plan.
October 12 » An iron lung respirator is used for the first time at Children's Hospital, Boston.
December 6 » The government of Colombia sends military forces to suppress a month-long strike by United Fruit Company workers, resulting in an unknown number of deaths.
December 17 » Indian revolutionaries Bhagat Singh, Sukhdev Thapar and Shivaram Rajguru assassinate British police officer James Saunders in Lahore, Punjab, to avenge the death of Lala Lajpat Rai at the hands of the police. The three were executed in 1931.
Day of death March 31, 1970
The temperature on March 31, 1970 was between 3.7 °C and 8.9 °C and averaged 5.4 °C. There was 3.3 mm of rain during 4.5 hours. There was 2.4 hours of sunshine (19%). The heavily clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
January 15 » Muammar Gaddafi is proclaimed premier of Libya.
April 28 » Vietnam War: U.S. President Richard Nixon formally authorizes American combat troops to take part in the Cambodian campaign.
September 1 » Palestinian guerrillas attack the motorcade of King Hussein of Jordan in a failed assassination attempt.
September 5 » Vietnam War: Operation Jefferson Glenn begins: The United States 101st Airborne Division and the South Vietnamese 1st Infantry Division initiate a new operation in Thừa Thiên–Huế Province.
October 12 » Vietnam War: Vietnamization continues as President Nixon announces that the United States will withdraw 40,000 more troops before Christmas.
October 16 » Canadian Prime Minister Pierre Trudeau invokes the War Measures Act during the October Crisis.
Day of burial April 3, 1970
The temperature on April 3, 1970 was between -1.8 °C and 7.2 °C and averaged 2.8 °C. There was 5.7 hours of sunshine (44%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
April 12 » Soviet submarine K-8, carrying four nuclear torpedoes, sinks in the Bay of Biscay four days after a fire on board.
April 17 » Apollo program: The ill-fated Apollo 13 spacecraft returns to Earth safely.
April 24 » The Gambia becomes a republic within the Commonwealth of Nations, with Dawda Jawara as its first President.
September 6 » Two passenger jets bound from Europe to New York are simultaneously hijacked by Palestinian terrorist members of the PFLP and taken to Dawson's Field, Jordan.
October 8 » Aleksandr Solzhenitsyn wins the Nobel Prize in literature.
December 2 » The United States Environmental Protection Agency begins operations.
When copying data from this family tree, please include a reference to the origin: J Eijsermans, "Eijsermans family tree", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eijsermans/I408416.php : accessed March 7, 2026), "Maria Cornelia Antonius Leppers (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.