Ptolemy I Soter, the "Savior," born around 368 BC and died in 283 BC, is a
Macedonian general of Alexander the Great and one of his main successors. He is named
sovereign of Egypt in the division of Alexander's empire in 323 BC.
A satrap is the governor of a satrapy, that is, an administrative division
of the Persian Empire, the Kingdom of Macedonia, and the Seleucid Empire. He is the direct
representative of the king in a province, where he exercises all the royal prerogatives.
Valerian is a Roman emperor from 253 to 260 AD. He shares power with his son
Gallienus, who succeeds him as the sole Roman emperor from 260 to 268. He is captured by
Shapur I and dies in captivity at the hands of the Persians. Gallienus does nothing to save his father.
Shapur I is a 'king of kings' who reigns from 240 to 272 AD over the Sassanid Empire
which extended from Mesopotamia to the Indus River. The Sassanids are an Iranian dynasty.
Gallienus, also known as Gallien, is a Roman Emperor. Initially co-emperor, he
shares power with his father Valerian until the latter's capture in 260 AD.
Mesopotamia is a historical region in the Middle East located between the Tigris and
Euphrates rivers.
Nisibis is a notable place in the history of Syriac-speaking Christianity.
Ctesiphon is an ancient Parthian city on the left bank of the Tigris River, 30 km
south-east of the present city of Baghdad, in Iraq.
The Parthians are a people settled in the northeast region of Iran. Spanning
over Iran and part of Mesopotamia, they are defeated by the Romans. The Parthian
Arsacid dynasty is overthrown by the Sassanids.
Heraclianus or Aurelius Heraclianus is a Roman soldier who rises to the rank of prefect
at the end of Emperor Gallienus's reign.
Ancyra is an ancient city that corresponds to the present-day Ankara.
Galatia is a historical region of Anatolia, around present-day Ankara, named after
a Celtic people, the Gauls, who migrated there in ancient times, around 279 BC.
Bithynia is a historical region of Asia Minor located on the northern coast of the
Black Sea.
Chalcedon is a Greek city of Bithynia, now in Turkey, located on
the Sea of Marmara, at the eastern entrance of the Bosporus.
The Bosporus is the strait that connects the Black Sea to the Sea of Marmara and marks, with
the Dardanelles, the southern boundary between the Asian and European continents.
Thonis-Heracleion is an ancient city of Ancient Egypt, located near
the current Abu Qir. It's a strategic port city for entering Asia Minor.
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