Vietnam War: The U.S. Army begins Operation Ranch Hand, spraying an estimated 20 million US gallons (76,000 m3) of defoliants and herbicides over rural areas of South Vietnam in an attempt to deprive the Viet Cong of food and vegetation cover. Date: August 10, 1961 Read more on Wikipedia → 📅 Other events on August 10 📅…

The Heron Road Bridge collapses while being built, killing nine workers in the deadliest construction accident in both Ottawa and Ontario. Date: August 10, 1966 Read more on Wikipedia → 📅 Other events on August 10 📅 Events on this day in 1966 📅 On This Day (Today)

A day after murdering actress Sharon Tate and four others, members of Charles Manson's cult kill Leno and Rosemary LaBianca. Date: August 10, 1969 Read more on Wikipedia → 📅 Other events on August 10 📅 Events on this day in 1969 📅 On This Day (Today)

The Society for American Baseball Research is founded in Cooperstown, New York. Date: August 10, 1971 Read more on Wikipedia → 📅 Other events on August 10 📅 Events on this day in 1971 📅 On This Day (Today)

In Yonkers, New York, 24-year-old postal employee David Berkowitz ("Son of Sam") is arrested for a series of killings in the New York City area over the period of one year. Date: August 10, 1977 Read more on Wikipedia → 📅 Other events on August 10 📅 Events on this day in 1977 📅 On…

Three members of the Ulrich family are killed in an accident. This leads to the Ford Pinto litigation. Date: August 10, 1978 Read more on Wikipedia → 📅 Other events on August 10 📅 Events on this day in 1978 📅 On This Day (Today)

Murder of Adam Walsh: The head of John Walsh's son is found. This inspires the creation of the television series America's Most Wanted and the National Center for Missing & Exploited Children. Date: August 10, 1981 Read more on Wikipedia → 📅 Other events on August 10 📅 Events on this day in 1981 📅…

Japanese American internment: U.S. President Ronald Reagan signs the Civil Liberties Act of 1988, providing $20,000 payments to Japanese Americans who were either interned in or relocated by the United States during World War II. Date: August 10, 1988 Read more on Wikipedia → 📅 Other events on August 10 📅 Events on this day…

The Magellan space probe reaches Venus. Date: August 10, 1990 Read more on Wikipedia → 📅 Other events on August 10 📅 Events on this day in 1990 📅 On This Day (Today)

Two earthquakes affect New Zealand. A 7.0 Mw  shock (intensity VI (Strong)) in the South Island was followed nine hours later by a 6.4 Mw  event (intensity VII (Very strong)) in the North Island. Date: August 10, 1993 Read more on Wikipedia → 📅 Other events on August 10 📅 Events on this day in…