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14-year-old Ahmed Mohamed was arrested at school after bringing in a homemade clock, which was mistaken for a bomb.
The science-fiction movie 'The Martian,' starring Matt Damon, premiered in Toronto, Canada.
Archaeologists and scientists discovered a new human-like species inside caves in South Africa.
Queen Elizabeth II became Great Britain's longest-reigning monarch in history.
The Late Show with Stephen Colbert makes its debut.
A record-breaking haircut saved a sheep that had not been sheared in over five years in Canberra, Australia.
Google adopted a new logo design.
Rapper Kanye West publicly announced his plans to run for president at the MTV Video Music Awards.
One billion people logged into Facebook for the first time, surpassing a major milestone.
A 108-year-old message in a bottle washed up on a beach in Amrum, Germany.
More than 30 military students were injured in a mass pillow fight leading to a ban of the event in future years.
North Korea Introduces Pyongyang Time.
The world's most amazing face transplant took place.
Former President Jimmy Carter had a lesion removed from his liver.
A mass grave of 30 victims of the 1665 plague was found at Liverpool Street station in London, England.
Jon Stewart hosted his last episode of 'The Daily Show.'
Pittsburgh hosted the world's largest pinball tournament.
Two passenger trains derailed in Madhya Pradesh, India.
Miss Piggy and Kermit the Frog took to Twitter to tell the public that they had broken up.
President Barack Obama announced his Clean Power Plan to take action on climate change.
NASA announced they had found 'Earth's bigger, older cousin.'
American superhero movie 'Ant-Man' by Marvel was released.
Harper Lee's second novel, 'Go Set a Watchman,' was published.
NASA's New Horizons space probe completed the first flyby of Pluto in the history of human spaceflight.
Comic-Con celebrated its 48th yearly event in San Diego.
Same-sex marriage became legal in all 50 states.
NASA's Mars Odyssey completed its 60,000th orbit around Mars.
Pope Francis blamed Global warming on 'human selfishness.'
Donald Trump announced he was running for President.
A Texan doctor performed the world's first successful partial skull and scalp transplant.
One hundred volunteers in Bhutan set a new Guinness World Record when they planted 49,672 trees in one hour.
Jurassic World, directed by Colin Trevorrow, premiered in Paris.
Hollywood superstar Dwayne Johnson set a Guinness World Record for the Most selfies taken in three minutes.
The US Air Force Space Command launched the Boeing X-37B spaceplane for a classified mission.
Blurryface, the fourth studio album by Twenty One Pilots, was released.
Kathmandu, Nepal, was devastated by a major earthquake.
Armenia commemorated the 100th Anniversary of the Armenian Genocide.
The first-generation Apple Watch was released.
The children's cooking show, Matilda and the Ramsay Bunch, premiered on CBBC in the UK.
Hillary Clinton announced her candidacy for US President.
King Richard III of England was reburied at Leicester Cathedral, England.
Zayn Malik announced that he would be leaving the boyband One Direction.
Music copyright infringement from Pharrell Williams and Robin Thicke led to a record payout of $7.3 million to the family of Marvin Gaye.
NASA's Dawn probe became the first spacecraft to orbit a dwarf planet.
Madonna fell on stage while performing 'Living For Love.'
Drake released his fourth mixtape, 'If You're Reading This It's Too Late.'
Post Malone released his debut single, 'White Iverson,' to Soundcloud.
Harper Lee announced plans to publish a sequel to 'To Kill a Mockingbird.'
New Zealand golfer Lydia Ko became the youngest golfer to rank No. 1 in the world.
Missing Malaysian flight MH370 was announced to have been an accident with no survivors.
