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Ptolemy I
Ptolemy I Soter (366-282 BCE) was one of the successor kings to the empire of Alexander the Great. He served not only as king of Egypt but also the founder of the Ptolemaic Dynasty, a dynasty which included the infamous Cleopatra VII...
Definition
Ptolemy II Philadelphus
Ptolemy II Philadelphus ("The Sibling Loving", r. 282-246 BCE) was the second ruler of the Ptolemaic Dynasty. He consolidated the kingdom conquered by his father Ptolemy I and presided over its golden age. Ptolemy II invested heavily in Alexandria...
Definition
Arsinoe II Philadelphus
Arsinoe II (l. c. 318/311 - c. 270/268 BCE), daughter of Ptolemy I became one of the most enduring figures of the Lagid or Ptolemaic Dynasty and left an undeniable mark in the historical evidence. She was married three times; first to Alexander...
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What happened to the Great Library at Alexandria?
Once the largest library in the ancient world, and containing works by the greatest thinkers and writers of antiquity, including Homer, Plato, Socrates and many more, the Library of Alexandria, northern Egypt, is popularly believed to have...
Definition
Library of Alexandria
The Library of Alexandria was established under the Ptolemaic Dynasty of Egypt (323-30 BCE) and flourished under the patronage of the early kings to become the most famous library of the ancient world, attracting scholars from around the...
Definition
Berenice II Euergetis
Berenice II Euergetis (c. 267-221 BCE) was a pre-eminent Hellenistic queen, who ruled together with her husband Ptolemy III (r. 246-221 BCE), when the Ptolemaic kingdom was at the height of its power, dominating most of the eastern Mediterranean...
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Ptolemy I
Ptolemy I (366-282 BCE), gold pentadrachm. (Numismatics Museum, Athens)
Definition
Eratosthenes
Eratosthenes (l. c. 276-195 BCE) was a Greek astronomer, geographer, mathematician, and poet best known for being the first to calculate the circumference of the earth and its axial tilt. He is also recognized for his mathematical innovation...
Definition
Wars of the Diadochi
On June 10, 323 BCE Alexander the Great died in Babylon. Although historians have debated the exact cause most agree that the empire he built was left without adequate leadership for there was no clear successor or heir. The military commanders...
Definition
Claudius Ptolemy
Claudius Ptolemy (c. 100 to c. 170 CE) was an Alexandrian mathematician, astronomer, and geographer. His works survived antiquity and the Middle Ages intact, and his theories, particularly on a geocentric model of the universe with planets...