A backstaff is a an early navigational instrument for measuring the altitude of the sun and hence calculating latitude.
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how did the lateen sail help the european explorers
"Captain John Davis invented a version of the backstaff in 1594"
It enabled explorers to determine their position.
I wouldn't help the explorers at all because how so you know they are good so why would you trust them
yes
It would help transport salves
it helped them locate their latitude
Modern explorers tend to be people such as agronomists and geologists, folk who improve the economics of the land.
Navigational aid to determine longitude
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