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Which bought Tumblr for approximately $1.1 billion? 16 fans have answered this question No one has commented yet 63% medium

What was Tumblr's foundation date? 12 fans have answered this question No one has commented yet 58% medium

Who founded Tumblr? 12 fans have answered this question No one has commented yet 83% easy

When did the development of Tumblr begin? 10 fans have answered this question No one has commented yet 30% medium

As of May 2013, how many employees does Tumblr have? 10 fans have answered this question No one has commented yet 40% medium

Where's Tumblr's headquarters? 10 fans have answered this question No one has commented yet 70% medium

Within the first two weeks of Tumblr being created, how many users did it gain? 8 fans have answered this question No one has commented yet 25% hard