Cold War: American journalist William N. Oatis is arrested for espionage by the Communist government of Czechoslovakia. Date: April 23, 1951 Read more on Wikipedia → 📅 Other events on April 23 📅 Events on this day in 1951 📅 On This Day (Today)

During the Algiers putsch by French generals, President Charles de Gaulle announces he has assumed emergency powers, and calls on troops and civilians to support him. Date: April 23, 1961 Read more on Wikipedia → 📅 Other events on April 23 📅 Events on this day in 1961 📅 On This Day (Today)

Aeroflot Flight 2723 crashes into the Caspian Sea off the Absheron Peninsula, killing 33 people. Date: April 23, 1966 Read more on Wikipedia → 📅 Other events on April 23 📅 Events on this day in 1966 📅 On This Day (Today)

Soviet space program: Soyuz 1 (Russian: Союз 1, Union 1), a crewed spaceflight carrying cosmonaut Colonel Vladimir Komarov, is launched into orbit. Date: April 23, 1967 Read more on Wikipedia → 📅 Other events on April 23 📅 Events on this day in 1967 📅 On This Day (Today)

Vietnam War: Student protesters at Columbia University in New York City take over administration buildings and shut down the university. Date: April 23, 1968 Read more on Wikipedia → 📅 Other events on April 23 📅 Events on this day in 1968 📅 On This Day (Today)

Bangladesh Liberation War: The Pakistan Army and Razakars massacre approximately 3,000 Hindu emigrants in the Jathibhanga area of East Pakistan (now Bangladesh). Date: April 23, 1971 Read more on Wikipedia → 📅 Other events on April 23 📅 Events on this day in 1971 📅 On This Day (Today)

Blair Peach, a British activist, is fatally injured after being knocked unconscious during an Anti-Nazi League demonstration against a National Front election meeting in Southall, London. Date: April 23, 1979 Read more on Wikipedia → 📅 Other events on April 23 📅 Events on this day in 1979 📅 On This Day (Today)

SAETA Flight 011 crashes in Pastaza Province, Ecuador, killing all 57 people on board. The wreckage was not discovered until 1984. Date: April 23, 1979 Read more on Wikipedia → 📅 Other events on April 23 📅 Events on this day in 1979 📅 On This Day (Today)

Coca-Cola changes its formula and releases New Coke. The response is overwhelmingly negative, and the original formula is back on the market in less than three months. Date: April 23, 1985 Read more on Wikipedia → 📅 Other events on April 23 📅 Events on this day in 1985 📅 On This Day (Today)

Namibia becomes the 160th member of the United Nations and the 50th member of the Commonwealth of Nations. Date: April 23, 1990 Read more on Wikipedia → 📅 Other events on April 23 📅 Events on this day in 1990 📅 On This Day (Today)