Ptolemy II in the context of "Second Syrian War"

Ptolemy III Euergetes (Greek: Πτολεμαῖος Εὐεργέτης, romanized: Ptolemaîos Euergétēs, "Ptolemy the Benefactor"; c. 280 – November/December 222 BC) was the third pharaoh of the Ptolemaic dynasty in Egypt from 246 to 222 BC. The Ptolemaic Kingdom reached the height of its military and economic power during his kingship, as initiated by his father Ptolemy II Philadelphus.

Ptolemy III was the eldest son of Ptolemy II and Arsinoe I. When Ptolemy III was young, his mother was disgraced and he was removed from the succession. He was restored as heir to the throne in the late 250s BC and succeeded his father as king without issue in 246 BC. On his succession, Ptolemy III married Berenice II, reigning queen of Cyrenaica, thereby bringing her territory into the Ptolemaic realm. In the Third Syrian War (246–241 BC), Ptolemy III invaded the Seleucid empire and won a near total victory, but was forced to abandon the campaign as a result of an uprising in Egypt. In the aftermath of this rebellion, Ptolemy forged a closer bond with the Egyptian priestly elite, which was codified in the Canopus decree of 238 BC and set a trend for Ptolemaic power in Egypt for the rest of the dynasty. In the Aegean, Ptolemy III suffered a major setback when his fleet was defeated by the Antigonids at the Battle of Andros around 246 BC, but he continued to offer financial support to their opponents in mainland Greece for the rest of his reign. At his death, Ptolemy III was succeeded by his eldest son, Ptolemy IV.

The Triakontaschoinos (Greek: Τριακοντάσχοινος, "Land of the Thirty Schoinoi"), Latinized as Triacontaschoenus, was a geographical and administrative term used in the Greco-Roman world for the part of Lower Nubia between the First and Second Cataracts of the Nile, which formed a buffer zone between Egypt and later Rome on the one hand and Meroë on the other hand. The northern part of this area, stretching from the First Cataract south to Maharraqa, was known as the Dodekaschoinos or Dodecaschoenus (Δωδεκάσχοινος, "Land of the Twelve Schoinoi"). In the Ptolemaic and Roman periods the Dodekaschoinos was often annexed to Egypt or controlled from it, and the rest of the Triakontaschoinos sometimes was as well.

In 275 or 274 BC, Ptolemy II (r. 283–246 BC) sent an army to Nubia, and defeated the Kingdom of Kush. The expedition pursued several objectives: on the one hand, it curbed Kushite power, which had been steadily expanding for the past century, and helped secure Ptolemaic rule against the native Egyptians of Upper Egypt, who might be tempted to seek Kushite aid in their revolts. In addition, the expedition secured the Ptolemies' control of the supply route for African elephants, which played a crucial role as war elephants in their conflicts with the rival Seleucid Empire, that monopolized access to the larger Indian elephants. As a result of this campaign, the area between the First and Second Cataracts of the Nile, which also included the valuable gold mines of the Eastern Desert, was annexed to Egypt and became later known as Triakontaschoinos.

The Canal of the Pharaohs, also called the Ancient Suez Canal or Necho's Canal or Darius Canal, is the forerunner of the Suez Canal, constructed in ancient times and kept in use, with intermissions, until being closed in 767 AD for strategic reasons during a rebellion. It followed a different course from its modern counterpart, by linking the Nile to the Red Sea via the Wadi Tumilat. Work began under the pharaohs. According to Darius the Great's Suez Inscriptions and Herodotus, the first opening of the canal was under Persian king Darius the Great, but later ancient authors like Aristotle, Strabo, and Pliny the Elder claim that he failed to complete the work. Another possibility is that it was finished in the Ptolemaic period under Ptolemy II, when engineers solved the problem of overcoming the difference in height through canal locks.

Eumenes I (Ancient Greek: Εὐμένης) was dynast (ruler) of the city of Pergamon in Asia Minor from 263 BC until his death in 241 BC. He was the son of Eumenes, the brother of Philetaerus, the founder of the Attalid dynasty, and Satyra, daughter of Poseidonius. As he had no children, Philetaerus adopted Eumenes to become his heir.

Although nominally under Seleucid control, Pergamon under Philetaerus enjoyed considerable autonomy. However, upon his succession, Eumenes, perhaps with the encouragement of Ptolemy II, who was at war with the Seleucids, revolted, defeating the Seleucid king Antiochus I near the Lydian capital of Sardis in 261 BC. He was thus able to free Pergamon, and greatly increase the territories under his control. In his new possessions, he established garrison posts in the north at the foot of Mount Ida called Philetaireia after his adoptive father, and in the east, northeast of Thyatira near the sources of the river Lycus, called Attaleia after his grandfather, and he extended his control south of the river Caïcus to the Gulf of Cyme as well. Demonstrating his independence, he began to strike coins with the portrait of Philetaerus, while his predecessor had still depicted Seleucus I Nicator.

Aeantides (Ancient Greek: Αἰαντίδης) is the name of several people in Classical antiquity:

• Aeantides, the tyrant of Lampsacus, to whom Hippias gave his daughter Archedice in marriage.
• Aeantides, a tragic poet of Alexandria, mentioned as one of the seven poets who formed the Alexandrian Pleiad. He lived in the time of Ptolemy II.