Prince Henry of Portugal – also called Prince Henry the Navigator – began Portugal’s great age of exploration. From about 1419 until his death in 1460, he sent several sailing expeditions down the coast of Africa.4 In 1481, King John II of Portugal began sending expeditions to find a sea route around the southern shores of Africa. Many explorers made several attempts. It was Bartolomeu Dias who was the first to round Africa and make it to the Indian Ocean in 1488. But he was forced to head back to Portugal before he could make it to India.
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C is the right answer by the way
Answer: The caravans that that were passing through Babylon could be helped by the astronomers by telling them the time of day it was and even the hour.
Explanation:
Many caravans passed through Babylon to buy goods from the merchants there. They would buy numerous items and trade things for gold and silver. This made Babylon very rich. The astronomers that were there believed their Gods showed them the way by changes in the sky. They invented the Sundial and were the first people to use a calendar for the 7 day week.
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I think its mathematics,i could be wrong but i would mathematics