Archimedes was a Greek scientist who became famous for his work in the fields of geometry and mechanics. He discovered the principle later named after him when he noticed that water in a bathtub overflowed as he stepped into it. On realizing this, he ran through the streets shouting “Eureka!”, which means “I have got it.” This discovery helped him determine the purity of the gold crown made for the king.
Archimedes’ understanding of levers, pulleys, and the wheel-and-axle also helped the Greek army during its war with the Roman army.