Rich Suvner
Skint years RIP
but i'd say this is a relatively recent phenomenon, the other clubs have been consistently huge.
disagree with this - i lived in singapore in late 80s/early 90s and se asia only really cared about one league - english (pre prem lg). italian got a little look in at the time as well.
also, met plenty of people who supported derby county, notts forest, ipswich etc, showing it went back to the 70s.
remnants of colonialism spread our support base further and wider i think.