[coder543]

Some countries consider the 1st floor to be the ground floor, others consider the 1st floor to be the floor above the ground floor, which the formerly mentioned countries consider the 2nd floor… I think 0/1-based indexing is more subjective than simply being a “relic of C” or a “horrible kludge” :P

[zem]

I've been in the US for over a decade and it still occasionally makes me double-take when a room numbered 1xx is on the ground floor