In the United States, “Linux” has been trademarked by creator Linus Torvalds. He did that only to prevent someone else from making money out of it.
Linus Torvalds had named his creation Freax instead of Linux because he found the latter too egoistical! The operating system was named by Ari Lemmke of the Helsinki University of Technology.
FYI, the very first version of Linux was released on 25th August 1991.
