Under the belief that Israel and the United States were planning to attack its nuclear program, Iran conducted the Great Prophet III missile test and war games exercise.
Sri Lankan civil war: After advising civilians to take shelter in places of worship, the Sri Lanka Air Force bombed a church in Navaly, killing at least 147 people.
Albert Einstein, Bertrand Russell (pictured) and nine other preeminent intellectuals and scientists issued the Russell–Einstein Manifesto, calling for a conference to assess the dangers posed by weapons of mass destruction.