Peter and some of the apostles likely could not read AT ALL, in AD 40 or whatever unlettered meant illiterate AND uneducated. GJ is just formally uneducated. No miracle there.
Polynesians have one of the highest % per pop of JW's I believe. My husband whose mum is Samoan says they are just mad for religon of ANY kind.
Funny how they've replaced one volcano God for another.