Historical timeline for June 4

Eleven people are killed and 56 people are injured during a crowd crush incident outside M. Chinnaswamy Stadium in Bengaluru, India for the celebration of Royal Challengers Bengaluru's Indian Premier League victory.

Protests begin in Poland against the PiS government.

Four people are killed when a Cessna Citation V crashes into Mine Bank Mountain in Augusta County, Virginia.

Death of Giovanni López: Protests over the death of Giovanni López Ramírez, who had died on 4 May while in custody, begin in Jalisco following the release of a video of his arrest going viral on social media, and inspired by the George Floyd protests. Later, these spread across Mexico.

Falcon 9 Flight 1 is the maiden flight of the SpaceX Falcon 9 rocket, which launches from Cape Canaveral Air Force Station Space Launch Complex 40.

The Civic Forum of the Romanians of Covasna, Harghita and Mureș is founded.

The first flight of Ariane 5 explodes after roughly 37 seconds. It was a Cluster mission.

In the 1989 Iranian supreme leader election, Ali Khamenei is elected as the new Supreme Leader of Iran after the death and funeral of Ruhollah Khomeini.

Solidarity's victory in the 1989 Polish legislative election occurs, the first election since the Communist Polish United Workers' Party abandoned its monopoly of power. It sparks off the Revolutions of 1989 in Eastern Europe.

The 1989 Tiananmen Square protests are suppressed in Beijing by the People's Liberation Army, with between 241 and 10,000 dead (an unofficial estimate).

Ufa train disaster: A natural gas explosion near Ufa, Russia, kills 575 as two trains passing each other throw sparks near a leaky pipeline.

Three cars on a train carrying hexogen to Kazakhstan explode in Arzamas, Gorky Oblast, USSR, killing 91 and injuring about 1,500.

Jonathan Pollard pleads guilty to espionage for selling top secret United States military intelligence to Israel.

Gordon Kahl, who killed two US Marshals in Medina, North Dakota on February 13, is killed in a shootout in Smithville, Arkansas, along with a local sheriff, after a four-month manhunt.

Flight Lieutenant Jerry Rawlings takes power in Ghana after a military coup in which General Fred Akuffo is overthrown.

JVC introduces its VHS videotape at the Consumer Electronics Show in Chicago. It will eventually prevail against Sony's rival Betamax system in a format war to become the predominant home video medium.

Governor of California Jerry Brown signs the California Agricultural Labor Relations Act into law, the first law in the United States giving farmworkers collective bargaining rights.

Tonga gains independence from the British Empire.

Seventy-two people are killed when a Canadair C-4 Argonaut crashes at Stockport in England.

Cold War: In the Vienna summit, the Soviet premier Nikita Khrushchev sparks the Berlin Crisis by threatening to sign a separate peace treaty with East Germany and ending American, British and French access to East Berlin.