The Age of Exploration was the 15th-17th century where the European ships travel to different parts of the word to search for new trading route, wealth and knowledge.
During the Hellenistic Age, Archimedes made advancements in "mathematics"--specifically in the realm of geometry, since he developed innovative ways to calculate volume, area, etc.
He is 79, his birthday is December 17, 1936.
The answer is leningrad.<span />
