Alexander the Great's Campaigns and the End of the Classical Era (336–323 BCE)

Start

End

Oct 25, 336 BCE

Philip II assassinated; Alexander becomes king

Philip IIAlexander IIIAigai

Sep 1, 335 BCE

Destruction of Thebes secures Greek rear

ThebesAlexander III

Apr 1, 334 BCE

Crossing into Asia begins Persian invasion

HellespontAlexander III

May 1, 334 BCE

Battle of the Granicus: first major victory

Battle ofAlexander III

Sep 1, 334 BCE

Siege of Halicarnassus consolidates Caria

HalicarnassusCaria

Timeline

336 BCE333 BCE329 BCE326 BCE323 BCE

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Authored by

Michael Carrico|Updated Apr 23, 2026

336 BCE333 BCE329 BCE326 BCE323 BCE

Michael Carrico

Updated:Apr 23, 2026

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Library Classical Period

Alexander the Great's Campaigns and the End of the Classical Era (336–323 BCE)

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Philip II assassinated; Alexander becomes king

Destruction of Thebes secures Greek rear

Crossing into Asia begins Persian invasion

Battle of the Granicus: first major victory

Siege of Halicarnassus consolidates Caria

Alexander the Great's Campaigns and the End of the Classical Era (336–323 BCE)

Philip II assassinated; Alexander becomes king

Destruction of Thebes secures Greek rear

Crossing into Asia begins Persian invasion

Battle of the Granicus: first major victory

Siege of Halicarnassus consolidates Caria

Battle of Issus defeats Darius III

Foundation of Alexandria in Egypt

Siege of Tyre ends with Macedonian capture

Battle of Gaugamela destroys Persian field army

Alexander captures and burns Persepolis

Darius III deposed and killed

Battle of the Hydaspes in India

Susa weddings attempt elite Macedonian–Persian fusion

Mutiny at Opis challenges Alexander’s integration policy

Alexander dies at Babylon