On May 13

Eurovision Song Contest: Portugal won the contest for the first time, with the song "Amar pelos dois," performed by Salvador Sobral (pictured).

Nine bombs placed by the Indian Mujahideen, then an unknown terrorist group, exploded in a 15-minute period in Jaipur, India, killing 80 people and injuring more than 200 others.

Uzbek Interior Ministry and State Security Service troops fired at protesters in Andijan, killing between 187 and 1,500 people.

An explosion (aftermath pictured) at a fireworks factory in Enschede, Netherlands, resulted in 23 deaths and approximately €450 million in damage.

Li Hongzhi introduced the Falun Gong movement at a public lecture in Changchun, China.

Eleven members of the American Black liberation group MOVE were killed when a Philadelphia police helicopter dropped a bomb on their house during a raid.

The Troubles: A car bomb planted by Ulster loyalists exploded outside a crowded pub in Belfast, Northern Ireland, beginning two days of gun battles between the British Army, the Provisional Irish Republican Army, and the Ulster Volunteer Force.

Sino-Malay race riots began in Kuala Lumpur, leaving at least 190 people dead, with the government declaring a state of emergency and suspending the Parliament of Malaysia until 1971.

US vice president Richard Nixon's motorcade was attacked by a mob in Caracas, Venezuela.

The Australian adventurer Ben Carlin became the only person to circumnavigate the world in an amphibious vehicle, having travelled over 80,000 kilometres (50,000 miles) by land and sea.

The Russian inventor Igor Sikorsky flew the self-designed Russky Vityaz, the world's first four-engine fixed-wing aircraft.

The inaugural edition of the Giro d'Italia, a long-distance multiple-stage bicycle race, began in Milan; the Italian cyclist Luigi Ganna was the eventual winner.

The Australian astronomer John Tebbutt discovered the Great Comet of 1861, through whose tail the Earth passed later that year.

The English mystic Julian of Norwich recovered from a severe illness during which she experienced a series of intense visions of Christ, which she later described in the first known English-language book written by a woman.