The document summarizes the history of the free software and open source movements. It discusses early hacker culture at MIT, the founding of the GNU project and Free Software Foundation by Richard Stallman, the creation of the Linux kernel by Linus Torvalds, and Eric Raymond's influential essay "The Cathedral and the Bazaar" which helped popularize the open source term. It also covers diversity and conflicts between the free software and open source communities as well as the impact of open source software on the software industry and politics.