ships from this voyage, the inhabitants of
Lisbon first saw, with astonishment, negroes of a jet black complexion, and
woolly hair, quite different from the slaves which had been hitherto
brought from Africa; for, before this time, they had seized, and sold as
slaves, the tawny Moors, which they met with on the coast of Africa. In the
year 1442, however, some of these had been redeemed by their friends, in
exchange for negroes and gold dust. This last article stimulated the
avarice of the Portuguese to greater exertions, than Prince Henry had been
able to excite, and an African company was immediately formed to obtain it,
slaves, &c.; but their commerce was exclusively confined to the coast of
Africa, to the south of Sierra Leone. Dr. Vincent justly remarks, that
Henry had stood alone for almost forty years, and had he fallen before
these few ounces of gold reached his country, the spirit of discovery might
have perished with him, and his designs might have been condemned as the
dreams of a visionary. The importation of this gold, and the establishment
of the African company in Portugal, to continue the remark of the same
author, is the primary date, to which we may refer that turn for adventure
which sprung up in Europe, which pervaded all the ardent spirits in every
country for the two succeeding centuries, and which never ceased till it
had united the four quarters of the globe in commercial intercourse.

In 1445, the Portuguese reached Senegal, where they first saw Pagan
negroes: in 1448 and 1449, their discoveries extended to Cape Verd. The
islands of that name were discovered in 1456. The exact extent of their
discoveries from this time till 1463, when Prince Henry died, is not
certainly known. According to some, Cape Verd, or Rio Grande, was the
limit; according to others, one navigator reached as far as the coast of
Guinea, and Cape Mesanado: some extend the limit even as far south as the
equator. Assuming, however, Rio Grande as the limit of the discoveries made
in Prince Henry's time, Rio Grande is in latitude 11 north, and the straits
of Gibraltar in latitude 36 north; the Portuguese had therefore advanced 25
degrees to the south; that is 1500 geographical, or 1750 British miles,
which, with the circuit of the coast, may be estimated at 2000 miles.

For nearly 20 years after the death of Prince Henry, little progress was
made by the Portuguese in advancing to the south. At the time of the death
of Alonzo, in 1