2.4 The History of Ubuntu
As mentioned previously, Ubuntu is one of a number of Linux distributions. The source code that makes up the Ubuntu distribution originates from a highly regarded Linux distribution known as Debian created by Ian Murdoch.
A South African internet mogul named Mark Shuttleworth (who made his fortune selling his company to VeriSign for around $500 million) decided it was time for a more user friendly Linux. He took the Debian distribution and worked to make it a more human friendly distribution which he called Ubuntu. He subsequently formed a company called Canonical Ltd to promote and provide support for Ubuntu.
If you are new to Linux, or already use Linux and want to try a different Linux distribution it is unlikely you will find a better option than Ubuntu.