Instagram was launched and gained 25,000 users on its first day.
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Mark Zuckerberg announced plans to remove third-party fact-checking from Facebook and Instagram.
Selena Gomez achieved a world record for being the first person to reach 100 million followers on Instagram.
Queen Elizabeth II published her first post on Instagram.
David Attenborough gained one million followers on Instagram within 4 hours and 45 minutes of his first post.
