In message , at 12:15:48 on Thu, 7
Jan 2016, Clive D. W. Feather remarked:

My seat of education predates the USA so neither spells Globalisation
with a Zee nor offers "101" courses as an introduction to the subject
area....
But the good news is you spotted those two USA-isms (which have
travelled to the UK) and know what they mean.

Spelling with a Z isn't a USA-ism, it's the OED's preferred spelling
for most such forms. Spelling them with an S is a Frenchism that crept
into English post-1776.

Whether the OED prefers it or not, the "s" is the usual English spelling
these days, and "z" sticks out a bit.
--
Roland Perry