In 928 AD the astrolabe was developed to help mariners a
determine the location of land
b
determine the depth of the ocean
c
determine latitude at sea
d
determine the location of ships via GPS satellites

What were some of the great finds that portuguese sailors discovered after prince henry established his navigational school in 1415? the gold coast and the cape verde islands gold and silver ore china the cape of good hope

Lloyd’s of london was one of the first institutions to offer insurance to merchants and joint-trade companies. a major part of the insurance system involved people who agreed to take responsibility for the insured losses in return for a fee. what were these risk-takers known as? a. joint-stock companies b. investors c. underwriters d. merchants e. capitalists

How did political revolutions in the atlantic ocean basin affect or alter the institution of slavery and the lives of slaves