Ptolemy I Soter

Macedonian general, ruler of Egypt

second great battle of Alexander's conquest of Asia

thumb|Antoninianus of Postumus with Serapis on the reverse. Serapis or Sarapis is a Graeco-Egyptian god. A syncretic deity derived from the worship of the Egyptian Osiris and Apis, Serapis was extensively popularized in the third century BC on the orders of Greek Pharaoh Ptolemy I Soter, as a means to unify the Greek and Egyptian subjects of the Ptolemaic Kingdom.

thumb|upright|Muses|Muse statue, a common scholarly motif in the Hellenistic age.

Ptolemaida (, Katharevousa: Πτολεμαΐς, Ptolemaïs) is a town and a former municipality in the Kozani regional unit of Western Macedonia, Greece. Since the 2011 local government reform, it is part of the municipality of Eordaia, of which it is the seat and a municipal unit. It is known for its coal (lignite) mines and its power stations.

battle between Alexander the Great and Ariobarzanes near Persepolis in a small mountainpass known as the Persian gate along the Royal road

323 BC conference dividing the territories of Alexander the Great

work by Arrian

Power-sharing agreement passed at Triparadisus in 321 BC

battle in 312 BCE

decree

naval battle during the Wars of the Diadochi

mass wedding arranged by Alexander of Macedon

ancient Greek merchant ship wreck

ancient city in Egypt

The Heptastadion (Greek: Ὲπταστάδιον) was a giant causeway, often referred to as a mole or a dyke built by the people of Alexandria, Egypt in the 3rd century BC during the Ptolemaic period. The Heptastadion was created to link Pharos Island to the mainland coast and given a name based on its length (Heptastadion is Greek for "seven stadia"— hepta meaning seven, and a stadion being a Greek unit of length measuring approximately ). Overall it was more than three-quarters of a mile long.

system of measurement used in Ancient Egypt

319–315 BC war after Alexander the Great's death

Imperial cult in Hellenistic ancient Egypt