Chat with us in Facebook Messenger. Find out what's happening in the world as it unfolds.

A shop in Tahrir Square is spray painted with the word Twitter on February 4, 2011 in Cairo, Egypt.
A shop in Tahrir Square is spray painted with the word Twitter on February 4, 2011 in Cairo, Egypt.

    JUST WATCHED

    Key moments in Twitter's history

MUST WATCH

Key moments in Twitter's history

On the sixth anniversary of Twitter, CNN's Phil Han looks at some of the key moments in its history.

Key moments in Twitter's history

On the sixth anniversary of Twitter, CNN's Phil Han looks at some of the key moments in its history.