Cadamosto Navigationi, c. 1470, as reprinted in Giovanni Ramusio (1554: p. 106). See also M. Zamora Reading Columbus, (1993: p. 121)
"if the river mentioned does not proceed from the terrestrial paradise, it comes from an immense tract of land situated in the south, of which no knowledge has been hitherto obtained" (Columbus 1499 letter on the third voyage, as reproduced in R.H. Major, Select Letters of Christopher Columbus, 1870: p. 147)
Columbus 1500 letter to the nurse (in Major, 1870: p. 154)
Columbus's 1500 letter to the nurse(Major, 1870: p. 170)
