[Astromancer]

Try this one...

A monk, whose father was a Bristol merchant, wrote a book in 1390 AD, detailing what he knew of the lands west of Greenland. Many Homeline scholars speculated the regular trade between Bristol in England and Iceland would have lead to a discovery of North America long before Columbus (the Bristol Merchants kept their activities secret for fear of ships and cargoes being confiscated by royal orders, the Norse claimed exclusive right to North Atlantic trade and England was to busy elsewhere to risk war with Norway over codfish).

With North America, and its fisheries now known in Europe, expeditions start out to seek riches and fame. Basically, Knights and Indians