Singapore opened the world's first Summer Youth Olympics Games.
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."
South Africa played host to the first FIFA World Cup in Africa.
SpaceX's Falcon 9 rocket successfully launched on its maiden flight.
In the Super Rugby Final at Orlando Stadium, the Bulls defended their title with a 25-17 win over the Stormers in an all-South African final.
The final episode of LOST aired.
Emmy Award winner Julia Louis-Dreyfus, star of 'Seinfeld,' received the 2,407th star on the Hollywood Walk of Fame.
Sachin Tendulkar becomes the first cricket player to score a double-century in the One Day International format.
Casey Neistat uploaded his first-ever YouTube video.
Justin Bieber reached one million followers on Twitter.
Steve Jobs announced the Apple iPad, the company's most advanced piece of technology at the time.
Judge Simon Cowell left American Idol but continued working with FOX on X Factor US.
James Cameron's 'Avatar' was released in the US. It became the highest-grossing film of all time at the time.
Tiger Woods announced his indefinite leave from professional golf to focus on his marriage.
A sequel to LittleBigPlanet was released for the PlayStation Portable.
The Twilight Saga: New Moon premiered in Los Angeles.
Microsoft released the Windows 7 operating system.
EA Games' FIFA 10, the highest-rated FIFA game made, was released in Europe.
The American sitcom 'Modern Family' premiered on ABC.
'Harry Potter' and the Half-Blood Prince” movie by J.K. Rowling was released.
General Motors filed for Chapter 11 bankruptcy.
Justin Bieber made his first tweet at 8:27 pm, promoting his single 'One Time.'
The American sitcom 'Parks and Recreation' debuted on NBC.
Texas movie fans were surprised with a special premiere viewing of that year's Star Trek movie.
Brazilian soccer athlete Neymar da Silva Santos Jr. started his professional career at just 17 years old.
RuPaul's Drag Race season 1 debuted on Logo TV.
The cryptocurrency 'Bitcoin' was created, providing a new digital currency.
YouTube Live had the largest viewed broadcast ever, with guest artists performing from San Francisco and Tokyo.
The James Bond spy movie 'Quantum of Solace' with Daniel Craig premiered in London.
Google Play was launched.
Swedish music streaming service Spotify was launched by Daniel Ek and Martin Lorentzon.
Google launched Google Chrome, its own cross-platform web browser.
Danny Boyle and Loveleen Tandan's Slumdog Millionaire premiered at Colorado’s Telluride Film Festival.
American swimmer Michael Phelps became the first person to win eight gold medals at one Olympic Games.
Michael Phelps won the 100-meter butterfly swim in a record 50:58 at the Beijing Olympic finals.
Morgan Freeman's car flipped over several times on the highway in Mississippi.
Batman's 'The Dark Knight' premiered in London.
Bill Gates stepped down as chairman of Microsoft Corporation.
The Fermi Gamma-ray Space Telescope was launched into Earth's orbit atop a Delta II rocket.
Rockstar Games released Grand Theft Auto IV, the sixth in the GTA series, for PlayStation 3 and Xbox 360.
Danica Patrick won the Indy Japan 300, becoming the first woman to win an Indy car race.
After recording for four years, Duffy released her debut studio album ''Rockferry."
The New York Philharmonic Orchestra performed in Pyongyang, North Korea.
Amy Winehouse scored five awards at the 50th Grammy Awards.
The first episode of Breaking Bad premiered on AMC.
Pablo Picasso's 'Portrait of Suzanne Bloch' was stolen from the São Paulo Museum of Art, along with O Lavrador de Café by Candido Portinari.