Note 5 — Chapter II
Reading edition
The Portuguese geographers divided Central Africa into Angola in the west, the kingdom of Prester John in the north (Abyssinia), and the empire of Monomotapa (Mashonaland) in the south. The real Prester John was a Nestorian Christian in Central Asia, whose khanate was destroyed by Genghis Khan about the end of the twelfth century; but the name became a generic one for any supposed Christian monarch in unknown countries.