April 10th

The President of Poland, Lech Kaczyński, dies in a plane crash. Several high-ranking officials, senior members of the Polish clergy, as well as relatives of the Katyn massacre victims were killed. The accident was blamed on pilot error and bad weather.
2010 Polish Air Force Tu-154 crash
A woman wearing an explosives vest strapped underneath her black robe blew herself up in the midst of 200 police recruits in Muqdadiyah, Iraq, killing 16.
Mercy killings become legal in the Netherlands. In a controversial decision the Dutch senate approved a bill legalizing euthanasia for patients with unbearable, terminal illness.
Euthanasia in the Netherlands
Negotiators in Northern Ireland reach an historic peace deal. The Good Friday Agreement ended 30 years of violent conflict about Northern Ireland's constitutional status (“The Troubles”).
Northern Ireland peace process
Financier Charles Keating Jr. was sentenced in Los Angeles to nine years in prison for swindling investors when his Lincoln Savings and Loan collapsed. (The convictions were later overturned).
Charles Keating
Imprisoned IRA hunger striker Bobby Sands won election to the British Parliament.
Bobby Sands
US, USSR & 70 other nations agree to ban biological weapons.
1972 Olympic Men's Basketball Final
The Beatles break up as Paul McCartney leaves the band. In their ten years of existence, the British rock group became one of the most successful bands of all time, selling over a billion albums, according to EMI. McCartney's announcement came a week before the release of his debut solo album, the starting point of a successful solo career.
Break-up of the Beatles
Brooklyn Dodgers president Branch Rickey announced he had purchased the contract of Jackie Robinson from the Montreal Royals, paving the way for Robinson to become the first black to play in the major leagues.
Branch Rickey
Allies liberate 1st Nazi concentration camp, Buchenwald (Czech).
Buchenwald concentration camp
Adolf Hitler came in second in voting for German president to the incumbent, Paul von Hindenburg.
German presidential election, 1932
RMS Titanic sets sail from Southampton for her maiden (and final) voyage.
RMS Titanic
The American Society for the Prevention of Cruelty to Animals was incorporated.
American Society for the Prevention of Cruelty to Animals
'Big Ben', a 13.76 tonne bell, is recast in the Tower of Westminster.
Mount Tambora explodes in one of the largest volcanic eruptions in recorded history. At least 71,000 people were killed by the eruption. The explosion was heard up to 2000 km (1200 mi) away.
1815 eruption of Mount Tambora
1st Jewish ghetto established: Venice compels Jews to live in a specific area.
Venetian Ghetto
Lama Deshin Shekpa visits the Ming Dynasty capital at Nanjing and is awarded the title Great Treasure Prince of Dharma.