In this program, Professor Marcus du Sautoy explores mathematical milestones of ancient Egypt, Mesopotamia, and Greece. Topics include Egypt’s unusual method of multiplication and division, as well as Egyptians’ understanding of binary numbers, fractions, and solids such as the pyramid; Babylon’s base-60 number system—the foundation of minutes and hours—and Babylonians’ use of quadratic equations to measure land; and the contributions of four of Greece’s mathematical giants: Plato, Euclid, Archimedes, and Pythagoras. Original Open University title: The Language of the Universe. A part of the series The Story of Math. (58 minutes)