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Thinkers Timeline

Key thinkers across history — grouped by era, colour-coded by discipline. Click any card to explore ideas, quotations, and classroom contexts.

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Ancient — pre-500 CE
Archimedes c. 287 BCE - c. 212 BCE · Syracuse, Sicily (Hellenistic Greek world)
Archimedes was a Greek mathematician, scientist, and engineer. He was born around 287 BCE in Syracuse, a Greek city on the island of Sicily. We know little about his early life. His father was an astronomer named Phidias. He may have studied for a time at the great Library of Alexandria in Egypt, though this is not certain. Most of his life, however, was spent in Syracuse. In his time, Syracuse was an independent Greek-speaking city. The Roman Republic was growing stronger and would soon swallow most of the Mediterranean world. Archimedes worked closely with the king of Syracuse, Hiero II, and later with Hiero's grandson Hieronymus. He served the city as both a thinker and an inventor. In the year 212 BCE, Roman forces attacked Syracuse. Archimedes was about 75 years old. He had designed weapons to defend the city, including powerful catapults and machines that lifted enemy ships out of the water. The Romans took the city after a long siege of about two years. The traditional story is that a Roman soldier killed Archimedes during the chaos, even though the Roman general Marcellus had ordered that he be spared. According to later writers, Archimedes was working on a mathematical problem when the soldier arrived. He asked not to have his diagrams disturbed. The soldier killed him anyway. His tomb in Syracuse was lost for centuries. The Roman writer Cicero claimed to have rediscovered it nearly 140 years after his death.
"Eureka! I have found it!"