The history of WordPress begins with what is known as WordPress 0.5, or at the time, B2/Cafelog in 2001. After a couple of years, in 2003, Matt Mullenweg took over the platform as lead programmer and launches WordPress 0.7 the same year.
As of July 2011, WordPress went on to surpass 50 million blogs, and in 2013 with a 59% CMS market share, it becomes the most popular and used CMS in the world.