The first commitment period of the Kyoto Protocol ends.
Summer Olympics take place in London, UK.
Shenzhou 9, a Chinese spacecraft carrying three Chinese astronauts, docked manually with an orbiting module.
The century's second and last solar transit of Venus occurs.
Spain 4-0 wins against Italy in the European Championship in Soccer.
The viral Invisible Children campaign KONY 2012 swarms on social media.
Hurricane Sandy causes major disruption to the American east coast.
President Obama won election against Mitt Romney.