[Kenny Bunk]

FYI, there are a few methods of finding longitude. One pre-chronometer method was by taking sights on the moons of Jupiter (which are actually visible to the naked eye at sea on clear nights). Other methods involved complex astronomical observations. These difficult methods required a high level of skill and dense mathematics to be used.

Using a sextant, tables, and a chronometer is merely the easiest way to do it ... and to train people to do it who are not rocket surgeons einsteins.

[pabianice]

One pre-chronometer method was by taking sights on the moons of Jupiter

Huh? Just how would that be done?

[OwenKellogg]

by taking sights on the moons of Jupiter (which are actually visible to the naked eye at sea on clear nights)

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I was a navigator for the USAF/ANG — did a lot of tricks with a sextant. But never saw the moons of Jupiter without a telescope and never heard of any navigation tricks using the moons of Jupiter.

[Forward the Light Brigade]

What about the Cocain found in Egyptian Mummies? How did it get to Egypt? My bet—Carthage sailed the Atlantic and traded for it. kept it hidden least others get a piece of this rich trade (a very Cartaginian concept ) the practiced human sacrifice like the Peoples of the new world.