Humanity Unfolds
Tech Culture
Main Timeline
People
The people behind the era
David Karp
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Founded / created
Tumblr
Connected organizations
1
Shared timeline entries, not an employment history.
On the timeline
2007-02-19
Tumblr launches the reblogging era
Sources
2
Platform history and origins
Portrait source & attribution
The people behind the era
Tumblr
Humanity UnfoldsHumanity UnfoldsThe people behind the era