Jack Dorsey Tweets A Fascinating Twitter History Lesson, 5 Years After Work On "Twttr" Began

Jack Dorsey

It’s been 5 years since work began on Twitter, creator and cofounder Jack Dorsey celebrated tonight — on Twitter, of course.

He followed with a fascinating history lesson about the beginning on Twitter; in tweets, of course. He also linked to some cool, old screenshots and IM conversations.

And he said he’d be sharing more Twitter history lessons over the next couple of weeks. (He’s using the hashtag #twttr.)

Tonight, we learned how Twitter got its name. And you’ll never guess who owned the SMS shortcode that Twitter originally wanted to use.

Here's that first tweet

From Jack's Tumblr, an IM with Biz Stone about Twttr

Here's the screenshot

Here's the screenshot

Here's the screenshot

(Here's part one, from Jack's Tumblr)

(Here's part two, from Jack's Tumblr)

Here's a chat with Biz Stone from Jack's Tumblr

Here are some of the SMS commands from Jack's Tumblr

That was cool! Now let's check in with a hot startup that Jack Dorsey invested in...

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