I think the answer would be the first to but I’m really sorry if this is wrong. Hope this helps :-)
Answer:
The British Empire
Explanation:
The British Empire was the great power that had the biggest empire in the 19th century.
Answer:
The astrolabe was the most important invention of the Age of Exploration, as seen through the facts that it could determine local time and latitude, measure the angles of stars, and locate the positions of the Sun, Moon, planets, and more components of astronomy.