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Tumblelog System Was Invented
Chris Neukirchen, a German high school student invented the 'tumblelog' system that inspired Tumblr's single paragraph blog design (Edwards, 2013). -
Karp Was Inspired By Projectionist
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). -
Tumblr is Launched
Tumblr is launched on the company's Wordpress blog and is described as a 'new philosophy, free of noise, requirements, and commitments' (Karp, 2007). -
Tumblr reaches 75 000 users
Only two weeks after Tumblr's launch date the blogging platform had 75'000 users (Complex, 2013). -
Tumblr Raises $85 Million From Investors
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). -
Tumblr Hits 10 Billion Posts
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). -
Obama Re-election Campaign is Launched on Tumblr
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). -
Tumblr Reaches 69.4 Million Blogs
Tumblr hits 69.4 million blogs and is now close to hitting 30 billion posts to date (Lunden, 2012). -
Yahoo Buys Tumblr for $1.1 billion
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) -
Tumblr CEO David Karp Announces he is Leaving
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).