First-tweets.com allows users to type in the name of any Twitter account and find out what was the first tweet they posted. Since it launched in 2006, more than 240m people have joined the social network.
British prime minister David Cameron and US president Barack Obama are both prominent on Twitter.
The very first tweet was sent by the site’s founder, Jack Dorsey, and read “just setting up my twttr”. Since then, more than 300bn tweets have been sent, with more than 500m currently being sent each day.
The success of Twitter saw the company launch a companion video service in 2013, with the release of Vine, an app that allows users to post six-second videos to the web.
Professional tweeter David Levin, who tweets for TV shows including The Voice, said: “As someone who tweets for a living, looking back at my first tweet is looking at a moment my life changed. Like my first day at school, but with more wine and crying.”