AD 529

Closure of the Neoplatonic school of Athens

Justinian's teaching ban ends the Athenian Neoplatonic school

The one ancient sentence behind the famous “closure of Plato’s Academy” never mentions Plato, or an Academy.

One sentence in Malalas

The sole direct ancient notice is John Malalas’s Chronicle, which says that during the consulship of Decius in 529 Justinian sent an order to Athens prohibiting the teaching of philosophy and the interpretation of astronomy, while also addressing divination with dice.

No month or day survives — only the year, identified through that consulship.

Malalas names no Academy, does not identify Damascius, and describes no ceremonial closure.

Not Plato’s institution

The ban dealt an institutional deathblow to the pagan Neoplatonic teaching circle led by Damascius.

But the affected sixth-century school was not securely continuous with the one Plato founded: the original institution ended amid the disruption surrounding Sulla’s sack of Athens in 86 BCE, and a later Platonist school was established elsewhere in the city.

Scholars dispute whether Justinian closed a particular institution, merely made its teaching impossible, or curtailed activities that continued privately for a time.

Seven philosophers, and a return

Seven philosophers associated with the Athenian school later travelled to the Persian court of Khosrow I — a few years after the ban, normally placed after his accession in 531, rather than an immediate flight.

They were subsequently allowed to return under guarantees associated with the Roman–Persian peace settlement of 532/533.

The evidence does not support a permanent transfer of the school to Persia and Syria, and the returning philosophers’ destinations remain debated, with Athens and Harran both proposed.

Sources

Researched 23 Aug 2026 6 sources not yet audited Date disputed

How this was checked

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Date disputed. Sources disagree about when this happened.

What the sources leave uncertain

No month or day is securely recorded; only the year, identified through the consulship of Decius.
The ancient source reports a teaching prohibition but does not name an 'Academy,' identify Damascius or describe a ceremonial closure.
Scholars dispute whether Justinian closed a particular institution, merely made its teaching impossible, or curtailed activities that continued privately for a time.
The sixth-century Neoplatonic school's institutional continuity with Plato's fourth-century-BCE Academy is rejected or questioned by substantial modern scholarship.