I'm pretty sure it started with Red Sox Nation and lots of teams/schools have copied it since then. It seems to have become most prominent during the Red Sox 2004 World Series.
https://en.wikipedia.org/wiki/Red_Sox_Nation
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.