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Chris Neukirchen, a German high school student invented the 'tumblelog' system that inspired Tumblr's single paragraph blog design (Edwards, 2013).
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Marcel Molina received an email from David Karp explaining that her tumblelog 'Projectionist' had inspired the new site he was launching with Marco Arment named Tumblr (Coyucci, 2013).
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Tumblr is launched on the company's Wordpress blog and is described as a 'new philosophy, free of noise, requirements, and commitments' (Karp, 2007).
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Only two weeks after Tumblr's launch date the blogging platform had 75'000 users (Complex, 2013).
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Tumblr's has raised $85 million from investors in their fifth round funding, meaning that the company has now made $125 million through venture backing (Popper, 2011).
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Tumblr celebrates hitting 10 billion posts on the platform as users blogs are sprinkled with confetti and thanked for being a part of the company's journey (Coyucci, 2011).
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President Barack Obama's campaign tweeted a link to their official Tumblr, explaining that they hope the page will be a 'huge collaborative storytelling effort' (Greenfield, 2011).
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Tumblr hits 69.4 million blogs and is now close to hitting 30 billion posts to date (Lunden, 2012).
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Yahoo announces they will be making a deal with Tumblr for $1.1 billion and that the company will remain independently operated with David Karp staying on as CEO (Isidore, 2013)
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After a decade of leading the company, David Karp announces that he will be stepping down after months of reflecting on his own personal ambitions (CBS News, 2017).