The first mass inoculation of children against polio with the Salk vaccine begins in Pittsburgh. Date: February 23, 1954 Read more on Wikipedia → 📅 Other events on February 23 📅 Events on this day in 1954 📅 On This Day (Today)

Five-time Argentine Formula One champion Juan Manuel Fangio is kidnapped by rebels involved in the Cuban Revolution, on the eve of the Cuban Grand Prix. He was released the following day after the race. Date: February 23, 1958 Read more on Wikipedia → 📅 Other events on February 23 📅 Events on this day in…

In Syria, Ba'ath Party member Salah Jadid leads an intra-party military coup that replaces the previous government of General Amin al-Hafiz, also a Baathist. Date: February 23, 1966 Read more on Wikipedia → 📅 Other events on February 23 📅 Events on this day in 1966 📅 On This Day (Today)

Operation Lam Son 719: South Vietnamese General Do Cao Tri was killed in a helicopter crash en route to taking control of the faltering campaign. Date: February 23, 1971 Read more on Wikipedia → 📅 Other events on February 23 📅 Events on this day in 1971 📅 On This Day (Today)

The Symbionese Liberation Army demands $4 million more to release kidnap victim Patty Hearst. Date: February 23, 1974 Read more on Wikipedia → 📅 Other events on February 23 📅 Events on this day in 1974 📅 On This Day (Today)

Iran hostage crisis: Supreme Leader Ayatollah Ruhollah Khomeini states that Iran's parliament will decide the fate of the American embassy hostages. Date: February 23, 1980 Read more on Wikipedia → 📅 Other events on February 23 📅 Events on this day in 1980 📅 On This Day (Today)

In Spain, Antonio Tejero attempts a coup d'état by capturing the Spanish Congress of Deputies. Date: February 23, 1981 Read more on Wikipedia → 📅 Other events on February 23 📅 Events on this day in 1981 📅 On This Day (Today)

The United States Environmental Protection Agency announces its intent to buy out and evacuate the dioxin-contaminated community of Times Beach, Missouri. Date: February 23, 1983 Read more on Wikipedia → 📅 Other events on February 23 📅 Events on this day in 1983 📅 On This Day (Today)

Supernova 1987a is seen in the Large Magellanic Cloud. Date: February 23, 1987 Read more on Wikipedia → 📅 Other events on February 23 📅 Events on this day in 1987 📅 On This Day (Today)

Saddam Hussein begins the Anfal genocide against Kurds and Assyrians in northern Iraq. Date: February 23, 1988 Read more on Wikipedia → 📅 Other events on February 23 📅 Events on this day in 1988 📅 On This Day (Today)