January 28 » The Carnegie Institution of Washington is founded in Washington, D.C. with a $10 million gift from Andrew Carnegie.
January 30 » The first Anglo-Japanese Alliance is signed in London.
April 18 » The 7.5 Mw Guatemala earthquake shakes Guatemala with a maximum Mercalli intensity of VIII (Severe), killing between 800–2,000.
April 20 » Pierre and Marie Curie refine radium chloride.
May 20 » Cuba gains independence from the United States. Tomás Estrada Palma becomes the country's first President.
December 14 » The Commercial Pacific Cable Company lays the first Pacific telegraph cable, from San Francisco to Honolulu.
Day of death August 23, 1963
The temperature on August 23, 1963 was between 13.1 °C and 18.0 °C and averaged 15.2 °C. There was 3.0 hours of sunshine (21%). The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
February 8 » Travel, financial and commercial transactions by United States citizens to Cuba are made illegal by the John F. Kennedy administration.
March 21 » Alcatraz Federal Penitentiary (in California) closes.
June 5 » Movement of 15 Khordad: Protests against the arrest of Ayatollah Ruhollah Khomeini by the Shah of Iran, Mohammad Reza Pahlavi. In several cities, masses of angry demonstrators are confronted by tanks and paratroopers.
June 17 » The United States Supreme Court rules 8–1 in Abington School District v. Schempp against requiring the reciting of Bible verses and the Lord's Prayer in public schools.
December 22 » The cruise ship Lakonia burns 180 miles (290km) north of Madeira, Portugal with the loss of 128 lives.
December 31 » The Central African Federation officially collapses, subsequently becoming Zambia, Malawi and Rhodesia.
Day of burial August 27, 1963
The temperature on August 27, 1963 was between 10.4 °C and 18.3 °C and averaged 14.1 °C. There was 1.4 mm of rain during 0.3 hours. There was 7.7 hours of sunshine (55%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
June 11 » Buddhist monk Thích Quảng Đức burns himself with gasoline in a busy Saigon intersection to protest the lack of religious freedom in South Vietnam.
June 12 » NAACP field secretary Medgar Evers is murdered in front of his home in Jackson, Mississippi by Ku Klux Klan member Byron De La Beckwith during the civil rights movement.
June 17 » The United States Supreme Court rules 8–1 in Abington School District v. Schempp against requiring the reciting of Bible verses and the Lord's Prayer in public schools.
July 22 » Crown Colony of Sarawak gains self-governance.
August 28 » March on Washington for Jobs and Freedom: The Reverend Martin Luther King, Jr. gives his I Have a Dream speech.
November 24 » Lee Harvey Oswald, the assassin of President John F. Kennedy, is killed by Jack Ruby.
When copying data from this family tree, please include a reference to the origin: A.G. Eijssink, "Family tree Eijssink", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eijssink/I1185.php : accessed February 24, 2026), "Hermannus Johannes Antonius (Hermannus, Johannes, Antonius) Heitkamp (1902-1963)".
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