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   One Direction is formed on the British television show "The X Factor" after each member auditions as solo artists but are put together as a group by Simon Cowell. One Direction is formed on the British television show "The X Factor" after each member auditions as solo artists but are put together as a group by Simon Cowell.
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   One Direction releases their debut album, "Up All Night," which becomes the fastest-selling debut album in the UK at the time. One Direction releases their debut album, "Up All Night," which becomes the fastest-selling debut album in the UK at the time.
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   The band wins their first BRIT Award for Best British Single for their song "What Makes You Beautiful." The band wins their first BRIT Award for Best British Single for their song "What Makes You Beautiful."
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   One Direction releases their second album, "Take Me Home," which debuts at number one on the Billboard 200 chart solidifying their status as global pop sensation. One Direction releases their second album, "Take Me Home," which debuts at number one on the Billboard 200 chart solidifying their status as global pop sensation.
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   One Direction embarks on their first headlining world tour, "Take Me Home Tour," which sells out arenas across the globe really showcases their status in the industry. One Direction embarks on their first headlining world tour, "Take Me Home Tour," which sells out arenas across the globe really showcases their status in the industry.
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   The band releases their third album, "Midnight Memories," which becomes the best-selling album of 2013 worldwide. This is also their best-selling album to date and further cements their popularity. The band releases their third album, "Midnight Memories," which becomes the best-selling album of 2013 worldwide. This is also their best-selling album to date and further cements their popularity.
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   One Direction releases their fourth album, "Four," which includes the hit single "Steal My Girl." One Direction releases their fourth album, "Four," which includes the hit single "Steal My Girl."
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   The band embarks on their "On the Road Again Tour," which becomes one of the highest-grossing tours of the year. The band embarks on their "On the Road Again Tour," which becomes one of the highest-grossing tours of the year.
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   Zayn Malik announces his departure from One Direction, citing the need to live a normal life out of the spotlight. Zayn Malik announces his departure from One Direction, citing the need to live a normal life out of the spotlight.
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   The band releases their fifth album, "Made in the A.M.," which becomes their last album before going on hiatus. The band releases their fifth album, "Made in the A.M.," which becomes their last album before going on hiatus.
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   One Direction begins their hiatus claiming they are going to be gone for 18 months One Direction begins their hiatus claiming they are going to be gone for 18 months
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   Harry Styles released his self-titled debut solo album fully departing form One Direction showcasing a more mature and diverse sound Harry Styles released his self-titled debut solo album fully departing form One Direction showcasing a more mature and diverse sound
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   Niall Horan joins Harry Styles with departing from One Direction by releasing his debut album "Flicker" which receives critical acclaim and commercial success. Niall Horan joins Harry Styles with departing from One Direction by releasing his debut album "Flicker" which receives critical acclaim and commercial success.
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   One Direction celebrates their 10th anniversary with a special website launch, releasing rare photos and videos for fans. One Direction celebrates their 10th anniversary with a special website launch, releasing rare photos and videos for fans.
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   The band releases a 10th-anniversary edition of their debut album, "Up All Night," featuring bonus tracks and behind-the-scenes footage. The band releases a 10th-anniversary edition of their debut album, "Up All Night," featuring bonus tracks and behind-the-scenes footage.
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   One Direction's music video for "What Makes You Beautiful" reaches one billion views on YouTube, solidifying their status as one of the most iconic boy bands in history. One Direction's music video for "What Makes You Beautiful" reaches one billion views on YouTube, solidifying their status as one of the most iconic boy bands in history.