Arc: popular since 2004!

Did you know that Arc has been a popular computer language since 2004? Pretty good for a language released in January 2008. I discovered Arc's longstanding popularity in Computerworld's review of Paul Graham's Hackers and Painters. The review from July 2004 says, "Paul Graham, well known for developing the popular Arc computer language and other Internet technologies...". I guess they didn't realize Arc hadn't been released at the time. Hopefully we won't see them publishing job listings looking for 4 years of Arc experience.