Episode 2 of 4

Definition of Northern Border

When: 3 February 1830
Where: London
Part of: London Protocol establishes Greek independence

The protocol defined the northern border of Greece from the mouth of the Achelous or Aspropotamos river to the mouth of the Spercheios river.

This Aspropotamos–Spercheios line established the territorial limits of the new state as fixed by the 3 February 1830 protocol. The protocol granted Greece the political, administrative, and commercial rights of an independent state. Final boundary adjustments were made only by later international acts of 1832, outside this protocol's own terms.

Sources

London Protocol (1830) Wikipedia, revision of 2026-04-24

Machine-drafted from the cited Wikipedia passages and checked by a reviewing model, not by a human editor. Every passage cites the revision it was written from; dates and places follow those passages.