E
| Name | Main Title | Dynasty | Date | Comment |
|---|---|---|---|---|
| Eratosthenes | Mathematician | Ptolemaic | c. 276 BC – c. 195 BC | Eratosthenes was born in Cyrene (in modern-day Libya). He was the third chief librarian of the Great Library of Alexandria, the center of science and learning in the ancient world, and died in the capital of Ptolemaic Egypt. |
| Euclid of Alexandria | Mathematician | Ptolemaic | (fl. c. late 4th century BC) | A Greek mathematician, known as the "Father of Geometry". He was active in Alexandria during the reign of Ptolemy I. In his best known work, Elements, Euclid deduced the principles of what is now called Euclidean geometry. Euclid also wrote on perspective, conic sections, spherical geometry, number theory and rigor. |
| Eurydice | Queen | Ptolemaic | (fl. c. late 4th century BC) | A daughter of the Macedonian general Antipater and wife of Ptolemy, the son of Lagus, later Ptolemy I of Egypt. She married Ptolemy around 320 BC and was the mother of Ptolemy Keraunos, Meleager, Ptolemais and Lysandra. |
Read more about this topic: List Of Ancient Egyptians