Historical timeline for April 20

SpaceX's Starship rocket, the largest and most powerful rocket ever built, launches for the first time. It explodes four minutes into flight.

State of Minnesota v. Derek Michael Chauvin: Derek Chauvin is found guilty of all charges in the murder of George Floyd by the Fourth Judicial District Court of Minnesota.

For the first time in history, oil prices drop below zero, an effect of the 2020 Russia-Saudi Arabia oil price war.

Ten people are killed in a bomb attack on a convoy carrying food supplies to a United Nations compound in Garowe in the Somali region of Puntland.

A 6.6-magnitude earthquake strikes Lushan County, Ya'an, in China's Sichuan province, killing at least 193 people and injuring thousands.

One hundred twenty-seven people are killed when a plane crashes in a residential area near the Benazir Bhutto International Airport near Islamabad, Pakistan.

The Deepwater Horizon drilling rig explodes in the Gulf of Mexico, killing eleven workers and beginning an oil spill that lasted six months.

Danica Patrick wins the Indy Japan 300, becoming the first female driver in history to win an Indy car race.

Johnson Space Center shooting: William Phillips barricades himself with a handgun in NASA's Johnson Space Center in Houston, Texas, before killing a male hostage and himself.

The Nicoll Highway in Singapore collapses, killing four workers.

Columbine High School massacre: Eric Harris and Dylan Klebold kill 14 people and injure 23 others before committing suicide at Columbine High School in Columbine, Colorado.

Air France Flight 422 crashes after taking off from El Dorado International Airport in Bogotá, Colombia, killing all 53 people on board.

University of California, Riverside 1985 laboratory raid: Animal Liberation Front rescues 467 animals being tested in a lab at University of California, Riverside in Riverside, California, causing $700,000 in damages to the laboratory, in advocacy for animal rights.

Apollo program: The Apollo 16 Lunar Module Orion, commanded by John Young and piloted by Charles Duke, lands on the Moon.

English politician Enoch Powell makes his controversial "Rivers of Blood" speech.

South African Airways Flight 228 crashes near J.G. Strijdom Airport in South West Africa (now Hosea Kutako International Airport in Namibia), killing 123 people.

Cold War: Failure of the Bay of Pigs Invasion of US-backed Cuban exiles against Cuba.

Amethyst incident: The People's Liberation Army attacks HMS Amethyst (F116) travelling to the British embassy in Nanjing during the Chinese Civil War.

The League of Nations officially dissolves, giving most of its power to the United Nations.

Twenty Jewish children used in medical experiments at Neuengamme are killed in the basement of the Bullenhuser Damm school.