The movie 'Drive,' based on James Sallis's novel, was released in the US.
Officers closed a highway in Alberta, Canada, after a truck carrying 104 beehives overturned.
Singer legend Amy Winehouse was found dead at her home in London, England.
NASA's space shuttle program finally came to a close when mission STS-135 landed.
Marvel's superhero movie 'Captain America: The First Avenger' hit the theaters.
The British newspaper, News of the World, published its last-ever edition following a phone-hacking scandal.
The Space Shuttle Atlantis launched for its final mission.
'Harry Potter and the Deathly Hallows – Part 2' premiered in London.
''Somebody That I Used to Know” by Gotye featuring Kimbra was released.
NASA's Endeavour Space Shuttle landed for its 25th and final time.
Germany abandons nuclear energy.
Oprah Winfrey aired her last show.
NASA launched the Endeavour Space Shuttle on the penultimate space shuttle mission.
The FBI's most wanted man, Osama bin Laden, was killed by the US Navy Seals and CIA operatives in Abbottabad, Pakistan.
Prince William and Kate Middleton tied the knot.
An EF4 multiple-vortex tornado destroyed areas of two major Alabama cities: Tuscaloosa and Birmingham.
The Voice, a reality singing competition television show, premiered on NBC.
NetherRealm's Mortal Kombat, the first game in the franchise reboot, was released for PS3 and Xbox 360.
After hyping the game up for years, Valve finally released Portal 2 for PC, PS3, and Xbox 360.
Game of Thrones premiered on HBO.
The movie 'Thor' premiered in cinemas in Sydney, Australia.
The Australian boy band 5 Seconds of Summer formed.
15,899 lives were lost after a severe 9.0 magnitude earthquake occurred in Japan.
Space Shuttle Discovery completed its last-ever mission and made its final landing onto Kennedy's runway at 11:57 am EST.
185 people are killed during an earthquake in Christchurch, New Zealand.
5 Seconds of Summer member Luke Hemmings posted his first YouTube video.
Myanmar's first elected parliament in half a century convenes.
The Egyptian government shut down 88% of the internet across the country.
The 2011 Egyptian revolution began after years of police brutality and corruption.
Estonia joined the Eurozone and adopted the Euro as its currency.
The 'Don't Ask Don't Tell' policy was repealed.
SpaceX became the first private company to launch, orbit, and recover a spacecraft.
A first edition of 'The Birds of America' by John James Audubon was auctioned at Sotheby's, London, England, for £7,321,250 ($10 million) – which took the record for any book at auction.
British singer-songwriter Adele released her hit single 'Rolling in the Deep.'
Harry Potter and the Deathly Hallows – Part 1, based on J.K. Rowling's 2007 fantasy novel, was released worldwide.
Taylor Swift's third studio album 'Speak Now' was released. It won Billboard's 2011 Album of the Year.
All 33 miners trapped after a mining accident in Chile were rescued after being stuck underground for 69 days.
Instagram was launched and gained 25,000 users on its first day.
Actor and actress Seth Rogen and Lauren Miller got engaged.
The American biographical drama movie 'The Social Network' was released at the New York Film Festival.
Lady Gaga wore a full outfit made of meat for the MTV Video Music Awards.
The historical drama 'The King's Speech' premiered at Telluride Festival in the United States.
Singapore opened the world's first Summer Youth Olympics Games.
Californian Judge Vaughn Walker overturned the same-sex marriage ban.
Wikileaks published classified information about the war in Afghanistan.
British boyband One Direction was formed during X-Factor UK.
'Inception,' starring Leonardo DiCaprio and Joseph Gordon-Levitt, premiered in London, England.
The longest tennis match in history took place.
The Twilight Saga: Eclipse premiered in Los Angeles.
Eminem released his 7th studio album ''Recovery."
