Ethiopian Airlines Flight 302 crashed six minutes after take-off from Addis Ababa International Airport due to a fault within the software of the plane, resulting in the deaths of all 157 people on board.
Military prime minister of South Vietnam Nguyễn Cao Kỳ sacked rival General Nguyễn Chánh Thi, precipitating large-scale civil and military dissension in parts of the nation.
Thomas Playford, Premier of South Australia, left office after 27 years, the longest term of any democratically elected leader in the history of Australia.