I have to presently work in UK and found UK keyboard layout is quite awkward.

@ is placed with ' instead of on 2
left Shift key is very small (just normal key width)
There's only one Alt key. Another is 'Alt Gr' key which doesn't perform any 'Alt' key function!
# sign is not on key 3 instead it is placed just besides Enter key!
\ is besided left Shift key.


Can anyone tell me Why UK keyboard layout is so different from US layout though both countries speak English?