Quote Originally Posted by arrScott View Post
" A costume is something you wear to play a role "for pretend." For example, I play on a vintage base ball team; we recreate baseball as it was played in the 1860s. ... When I wear that outfit to play a game, it's a uniform. When I wear it to answer the door on Halloween night, it's a costume. It's all about what you intend when you wear a thing.
I don't mean to offend, but even when you are playing a game i would consider what you wear a costume. As you say it is a recreation. So I would see the old-fashioned uniform as I would a period costume for a play. I think the analogy would work if you played modern baseball though.