Barbarians destroyed a lot of the documentation in 390BC, Historians now are left to piece the puzzle and grasp an understanding based on the evidence left
Answer:
Observation
Explanation:
According to the quote, "It is the duty of an astronomer to compose the history of the celestial motions through careful and skillful observation"
An astronomer must first observe before he can do any other thing.
The supply of books were increasing greatly in Europe from the 15th century to the 18th century.
Because of her status, Eleanor was regarded as the most powerful women during her era, giving birth to two heirs of the most powerful kingdoms in the Europe.
During her sons' reign, she still heavily involved in political affairs and help them maintain their power within the European continent
hope this helps
Gold, spices, and rich crops.
