🛠️ Invention or technique

Bireme (two banks of oars)

Birreme (remeros en dos niveles)

Date
c. 750 BCE · confidence medium
Place
Sidon, Lebanon
Credited to
Phoenician shipbuilders
Field
Movement

⚠️ Disputed: the sources disagree.

What it is

A galley with two superimposed banks of oars, doubling rowing power without lengthening the hull. Assyrian reliefs from Nineveh (c. 700 BC) depict Phoenician biremes.

It is debated whether the two-level layout was Phoenician or Greek, and how it relates to the single-bank pentekonter; the Nineveh relief is the earliest pictorial evidence.

What it led to

  • faster warships of shorter length
  • the move to triremes with three banks of oars
  • Phoenician and Greek naval dominance of the Mediterranean
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Sources✓ verified 2026-11-04