@walkerjks if you produce a campus as first district in your 1st 2 cities this tends to get science about right. Yes on continents you can avoid sailing completely if more than half the civs are on your landmass. The trouble is its part of the computers track and while the double is good, a hard early start with Kumasi and you do not even need computers. For this sudden jump, it will be when they discover castles, it will be a civ with culture tile improvements like france or china. They will also get a sudden tourism jump with flight. Have you tried Japanese cultural victory? Thats fun with adjacency.