April 30 in history — What Happened Today in History

The Monkseaton shootings occur in Tyne and Wear, England. One is killed and 16 are injured.

The Bijon Setu massacre occurs in Calcutta, India.

Beatrix is inaugurated as Queen of the Netherlands following the abdication of Juliana.

The Iranian Embassy siege begins in London.

Eruption of Mount Marapi: Mount Marapi, a complex volcano on the Indonesian island of Sumatra, erupts. Between 80 and 100 people are killed.

Fall of Saigon: Communist forces gain control of Saigon. The Vietnam War formally ends with the unconditional surrender of South Vietnamese president Dương Văn Minh.

Watergate scandal: U.S. President Richard Nixon fires White House Counsel John Dean; other top aides, most notably H. R. Haldeman and John Ehrlichman, resign.

The Bristol Bus Boycott is held in Bristol to protest the Bristol Omnibus Company's refusal to employ Black or Asian bus crews, drawing national attention to racial discrimination in the United Kingdom.

K-19, the first Soviet nuclear submarine equipped with nuclear missiles, is commissioned.

Supplementary Convention on the Abolition of Slavery enters into force.

Former Vice President and Democratic Senator Alben Barkley dies during a speech in Virginia.

In Bogotá, Colombia, the Organization of American States is established.

In Nevada, Boulder Dam is renamed Hoover Dam.

World War II: Führerbunker: Adolf Hitler and Eva Braun commit suicide after being married for less than 40 hours.

World War II: Soviet soldiers raise the first Soviet flag over the Reichstag. The Victory Banner will be raised the next day.

World War II: Stalag Luft I prisoner-of-war camp near Barth, Germany is liberated by Soviet soldiers, freeing nearly 9,000 American and British airmen.

World War II: The British submarine HMS Seraph surfaces near Huelva to cast adrift a dead man dressed as a courier and carrying false invasion plans.

The 1939–40 New York World's Fair opens.

NBC inaugurates its regularly scheduled television service in New York City, broadcasting President Franklin D. Roosevelt's N.Y. World's Fair opening day ceremonial address.

The Commonwealth of the Philippines holds a plebiscite for Filipino women on whether they should be extended the right to suffrage; over 90% would vote in the affirmative.

The Federal Industrial Institute for Women opens in Alderson, West Virginia, as the first women's federal prison in the United States.

Automaker Dodge Brothers, Inc, is sold to Dillon, Read & Co. for US$146 million plus $50 million for charity.

Albert Einstein completes his doctoral thesis at the University of Zurich.

Hawaii becomes a territory of the United States, with Sanford B. Dole as governor.

J. J. Thomson of the Cavendish Laboratory announces his discovery of the electron as a subatomic particle, over 1,800 times smaller than a proton (in the atomic nucleus), at a lecture at the Royal Institution in London.

Governor of New York David B. Hill signs legislation creating the Niagara Reservation, New York's first state park, ensuring that Niagara Falls will not be devoted solely to industrial and commercial use.

The Camp Grant massacre takes place in Arizona Territory.

American Civil War: Confederate forces led by General E. Kirby Smith attack federal troops retreating across the Saline at Jenkins' Ferry, Arkansas.

Wang Yafan, Chinese tennis player

Dion Dreesens, Dutch swimmer

Martin Fuksa, Czech canoeist

Marcel Bauer, German politician

Goodnight Chicken, Taiwanese YouTuber

Marc-André ter Stegen, German footballer

Chris Kreider, American ice hockey player

Travis Scott, American rapper and producer

Jonny Brownlee, English triathlete

Mac DeMarco, Canadian singer-songwriter

Kaarel Kiidron, Estonian footballer

Paula Ribó, Spanish singer-songwriter and actress

Jang Wooyoung, South Korean singer and actor

Khaled Choudhury, Indian painter and set designer (born 1919)

Julian Lewis, English biologist and academic (born 1946)

Carl E. Moses, American businessman and politician (born 1929)

Ian Ross, Australian journalist (born 1940)

Roberto Chabet, Filipino painter and sculptor (born 1937)

Shirley Firth, Canadian skier (born 1953)

Viviane Forrester, French author and critic (born 1925)

Tomás Borge, Nicaraguan poet and politician, co-founded the Sandinista National Liberation Front (born 1930)

Alexander Dale Oen, Norwegian swimmer (born 1985)

Giannis Gravanis, Greek footballer (born 1958)

Benzion Netanyahu, Russian-Israeli historian and academic (born 1910)

Dorjee Khandu, Indian politician, 6th Chief Minister of Arunachal Pradesh (born 1955)

Evald Okas, Estonian painter (born 1915)