Aaa well this is a good explanation. Since we learn english thats why i learned harbour..Gee, you have never called me a name ever I guess.
Anyway, don't be so sensitive, I was kidding.
"Harbour" is correct for proper nouns in the UK and Oz, and possibly Canada too.
"Harbor" is the correct US spelling, and Pearl Harbor is in the US. "Pearl Harbour" does not technically exist.
As for me calling you names.. yes when you deserved it and long time ago.
Anyway thnx for explanation