April 21, 2010
Facebook’s platform begins allowing apps to see data about users’ friends.
May 18, 2012
Facebook goes public, launching on the stock market.
December 13, 2012
Ted Kramer formally incorporates his app development company, Six4Three.
January 31, 2013
Facebook announces that it has more mobile users than desktop users.
April 2013
Six4Three’s app Pikinis, which allows users to find photos of their friends in bikinis, is called “creepy” in the media.
April 30, 2014
Mark Zuckerberg delivers a speech on privacy and changes to Facebook’s platform. He announces the end of permissive data sharing with apps, to take effect in a year.
April 10, 2015
Six4Three sues Facebook over the data sharing change.
April 30, 2015
Facebook ends permissive data sharing with apps.
January 27, 2016
Facebook reports record quarterly revenue, with profits more than doubling since the year before.
March 17, 2018
The Guardian reveals Cambridge Analytica tapped stolen data of about 50 million Facebook users.