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Colosseum

The Colosseum is a large ancient amphitheatre in Rome, Italy, built under the Flavian emperors in the 1st century CE.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

The Colosseum is a large ancient amphitheatre in Rome, Italy, built under the Flavian emperors in the 1st century CE. Also known as the Flavian Amphitheatre, it was used for gladiatorial contests and public spectacles and is now one of Rome’s best-known landmarks. It is the largest ancient amphitheatre ever built and the largest standing amphitheatre in the world.

History

Construction began under Emperor Vespasian in 72 CE and was completed in 80 CE under Titus, with later work under Domitian. The amphitheatre was built as part of the Flavian dynasty’s public-building program.

Architecture

The Colosseum is an elliptical, freestanding structure built of stone, concrete, tuff, and travertine. It measures about 189 metres by 156 metres and stands about four stories tall at its highest point. Its large scale and engineering made it the largest amphitheatre of the Roman world.

Use in antiquity

The arena was used for gladiatorial combat and other spectacles for Roman audiences. Events included animal hunts, public executions, and dramatic re-enactments.

Later history and preservation

After antiquity, the building was damaged by earthquakes and stone removal, but it remained a powerful symbol of Rome. Restoration and conservation have continued into the modern era.

Key facts

  • Built in the 1st century CE under the Flavian dynasty.
  • Largest ancient amphitheatre ever built.
  • Hosted gladiatorial combats, animal hunts, executions, and re-enactments.
  • Elliptical structure about four stories tall.
  • Name likely derives from a colossal statue of Nero.
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Canadian context

The Colosseum is commonly studied in Canadian history, classics, architecture, and art-history courses, and it is a major reference point for discussions of the Roman Empire in Canadian museums and curricula.

Frequently asked questions

What is the Colosseum?
The Colosseum is a large ancient Roman amphitheatre in Rome, also called the Flavian Amphitheatre.
When was the Colosseum built?
Construction began in 72 CE and it was completed in 80 CE.
Who built the Colosseum?
It was built under the Flavian emperors, especially Vespasian, Titus, and Domitian.
What was the Colosseum used for?
It hosted gladiatorial contests, animal hunts, executions, and other public spectacles.
How big is the Colosseum?
It measures about 189 metres by 156 metres and could hold roughly 50,000 to 80,000 spectators.
Why is it called the Colosseum?
The name likely comes from a colossal statue of Nero that once stood nearby.

References

  1. Encyclopaedia Britannicahttps://www.britannica.com/topic/Colosseum
    Supports: Identity, alternate name, materials, size, capacity, and use for gladiatorial combat.
  2. HISTORYhttps://www.history.com/articles/colosseum
    Supports: Construction period, size, freestanding structure, and modern restoration.
  3. The Colosseumhttps://www.thecolosseum.org/facts/
    Supports: Construction dates, original name, origin of the modern name, dimensions, and seating capacity.
  4. Parco archeologico del Colosseohttps://colosseo.it/en/area/the-colosseum/
    Supports: Official description, alternate name, origin of the name, historical uses, and architectural significance.