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New to Linux? Ubuntu Isn’t Your Only Option
(www.howtogeek.com)
From Wikipedia, the free encyclopedia
Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
Community icon by Alpár-Etele Méder, licensed under CC BY 3.0
That's what I interpreted from the "targeted at regular desktop users" part.
Certainly not one of the first distros. But one of the first that almost any normal person would actually be able to install and use? Absolutely.
There were multiple before it that claimed to be easy for anybody to use, but most of them still weren't by a long stretch.