The exact internationally accepted definition of c is given above. So is that conversion of inches to centimeters, so you can get the speed of light to 9.5 significant figures (log base 10) in miles per day, per hour, /s (per sec), or whateever you like.

We American are pretty inventive on our spelling, too. We toss out some letters that only confuse spelling, like stationary and stationary. The English aren't as fond of 'e' as they used to be. Just look at 16th and 17th century manuscripts and look at all the extra e's at the end of words. [I think they're e's, but they look just like their o's, so context has to tell you whether shoo is shee or shoe.]

I think it was the Americans who also invented that great word 'aint'.