GMT: Saturday weekend is here edition

Mornin'

1940 – The Holocaust: The first prisoners arrive at a new concentration camp at Auschwitz.
1941 – World War II: Battle of Crete: German paratroops invade Crete.
1948 – Chiang Kai-shek is elected as the first President of the Republic of China.
1949 – In the United States, the Armed Forces Security Agency, the predecessor to the National Security Agency, is established.
1956 – In Operation Redwing, the first United States airborne hydrogen bomb is dropped over Bikini Atoll in the Pacific Ocean.
1964 – Discovery of the cosmic microwave background radiation by Robert Woodrow Wilson and Arno Penzias.
1967 – The Popular Movement of the Revolution political party is established in the Democratic Republic of the Congo.
1971 – In the Chuknagar massacre, Pakistani forces massacre thousands, mostly Bengali Hindus.
1969 – The Battle of Hamburger Hill in Vietnam ends.
1980 – In a referendum in Quebec, the population rejects, by 60% of the vote, a government proposal to move towards independence from Canada.
1983 – First publications of the discovery of the HIV virus that causes AIDS in the journal Science by Luc Montagnier.
1983 – Church Street bombing: A car bomb planted by Umkhonto we Sizwe explodes on Church Street in South Africa's capital, Pretoria, killing 19 people and injuring 217 others.
1985 – Radio Martí, part of the Voice of America service, begins broadcasting to Cuba.
1989 – The Chinese authorities declare martial law in the face of pro-democracy demonstrations, setting the scene for the Tiananmen Square massacre.
1990 – The first post-Communist presidential and parliamentary elections are held in Romania.
1996 – Civil rights: The Supreme Court of the United States rules in Romer v. Evans against a law that would have prevented any city, town or county in the state of Colorado from taking any legislative, executive, or judicial action to protect the rights of gays and lesbians.
2002 – The independence of East Timor is recognized by Portugal, formally ending 23 years of Indonesian rule and three years of provisional UN administration (Portugal itself is the former colonizer of East Timor until 1976).
2006 – A series of massive strikes begin involving nearly 1.8 million garment workers in Bangladesh.
2010 – A social media event is celebrated in response to the Muslim extremists' reaction to images of Mohammed.
2012 – At least 27 people are killed and 50 others injured when a 6.0-magnitude earthquake strikes northern Italy.
2013 – An EF5 tornado strikes the Oklahoma City suburb of Moore, killing 24 people and injuring 377 others.
2014 – More than 118 people are killed in two bombings in Jos, Nigeria.