Happy Birthday, Twitter!


Today is the fifth anniversary of the first non-automated Tweet ever sent over the new Twitter social networking site. On March 21st, 2006, Twitter founder Jack Dorsey sent this Tweet:

inviting co-workers

Exciting, huh? Dorsey had been working on what would become Twitter for five years by then -it was first called Twttr.

As the story goes, Dorsey elaborated on his idea during a casual Mexican lunch at that San Francisco hotbed of startup DNA, South Park.

Coding began March 13, and eight days later a machine-generated tweet was issued from Dorsey’s account (No. 12):

just setting up my twttr

While this is widely considered the world’s first tweet, Dorsey is adamant that “inviting co-workers” (his Odeo colleagues) was the first, and so is Twitter.

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