Twitter users are creating 500 million tweets per day and 200 billion tweets every year.

"On March 21, ten years ago, it began with a single Tweet. Since then, every moment of every day, people connect about the things they care about most - all over the world," Twitter posted.

"As we mark this milestone, it's you we want to celebrate. As March 21 begins around the world, each of our global offices will kick off the day by showing our appreciation and gratitude - starting in Sydney and following the sun to headquarters in San Francisco. We are excited to celebrate with all of you," the post further read.

Twitter CEO Jack Dorsey said last week that while several changes are being planned at the company, its 140-character limit represents a beautiful constraint, which helps deliver strong statements.

The short character limit for tweets is an element that gives Twitter a unique identity.

Appearing on a TV show, Dorsey said that the 140-character limit is "a beautiful constraint".

 

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