A stoa is a long roofed portico, columns along the open side and a wall along the back, sometimes with rooms behind and sometimes two storeys. It has no single function, which is precisely its use: it provides shade in summer and shelter in rain, and it defines the edge of an open space without enclosing it.
Stoas housed shops, offices, law courts, painting galleries and casual assembly. The Painted Stoa at Athens, hung with panel paintings including a Marathon scene, is where Zeno taught — and the school took its name from the building, not from any doctrine.
The Stoa of Attalos, given to Athens by a king of Pergamon in the second century BCE, was reconstructed in the 1950s and is now the agora museum. It is the only place where the interior of a Greek civic building can be experienced at full scale, and it is a reconstruction.
What the evidence supports
Stoicism is named after a building.
Zeno taught in the Stoa Poikile, the Painted Stoa, in the Athenian agora; his followers were called the people of the stoa.
Stoas were donated by kings as public benefactions.
The Stoa of Attalos carries a dedicatory inscription. Hellenistic monarchs used civic buildings in Greek cities as instruments of diplomacy.
The Stoa of Attalos as it stands is a modern reconstruction.
Rebuilt in 1953–56 on the excavated foundations using ancient techniques and some ancient material. It is an informed reconstruction and not a surviving building.
Examples
The evidence level on each answers how we know what the building looked like, not whether it existed.
- Evidence level: Documented
Athens · c. 150 BCE; reconstructed 1953–56
The Stoa of Attalos
Two storeys with shops behind the colonnade. Now the museum of the Agora excavations. Reconstructed in 1953–56 on the excavated foundations.
- Evidence level: Probable
Athens · 5th century BCE
The Painted Stoa
Known from description and from partial excavation. Its paintings, including a Marathon scene, are lost.
Primary sources
Pausanias, Description of Greece 1.15
The Painted Stoa and its pictures, described while they still hung.
Diogenes Laertius, Lives of the Eminent Philosophers 7.1
Zeno teaching in the stoa, and the school taking its name from it.
How to read the evidence labels
- Evidence level: Documented
- Supported by a named primary text or by excavated material evidence.
- Evidence level: Probable
- Supported by strong inference that most specialists accept.
- Evidence level: Disputed
- Substantial specialist disagreement exists; competing readings are stated.
- Evidence level: Literary
- Belongs to poetic or mythological construction rather than to history.
- Evidence level: Mythological
- Belongs to shared religious or mythic tradition rather than to any single text.
- Evidence level: Unknown
- The available evidence is insufficient to decide.
These labels describe the status of the evidence, not our confidence in a conclusion. A claim marked Literary is not a claim we doubt; it is a claim about what kind of thing a poem is.