Rocket experiments at Cuxhaven are banned by the German authorities.
Presidential candidate Robert F. Kennedy is assassinated by Sirhan Sirhan.
The Tiananmen Square protests are suppressed in Beijing by the People’s Liberation Army, with between 241 and 10,000 dead (an unofficial estimate)
Mount Unzen erupts in Ky?sh?, Japan, killing 43 people, all of them either researchers or journalists.
During the FIFA World Cup, police had to intervene multiple times in fights between Chilean and Italian players in one of the most violent games in football history.
The Farhud, a massive pogrom in Iraq, starts and as a result, many Iraqi Jews are forced to leave their homes.
The South Africa Act comes into force, establishing the Union of South Africa.
30 May 1922 – The Lincoln Memorial is dedicated in Washington, D.C..
Emperor Maximilian I of Mexico arrives in Mexico for the first time.
The first Isle of Man TT race was held.