Hypatia

Biographical Notes [Hypatia of Alexandria Natural Philosopher (355? - 415 CE). She was the daughter of Theon, a mathematician who taught at the great school at the Alexandrine Library. She traveled widely and corresponded with people all over the Mediterranean. She taught at the school in Alexandria, Egypt. Letters written and addressed simply to the philosopher were delivered to her. She taught mathematics and natural philosophy. She is credited with the authorship of three major treatises on geometry and algebra and one on astronomy. She invented several tools: an instrument for distilling water, an instrument to measure the specific gravity of water, an astrolabe and a planisphere. She died violently.]