Ok... Ive got a question regarding the English language.
Ive noticed a couple of times now, there seems to be (at least) two ways of spelling certain things, British and American. Like colour and color (with or without the u), and center or centre. Now, I guess it aint such a big deal (although Conservapedia banns British spelling - apparently it is an "anti-American bias"), but... Can anyone tell me what is British and what is American, and are there more differences than above listed?