Topic summary
Boundary stone

Extracted from the Wikipedia article Boundary marker.
Greece
The earliest reference to a boundary stone in Greek literature is in the Iliad, which describes the goddess Athena using one as a projectile. Boundary stones, known as horos, could be made of either carved or undressed stones, and were typically inscribed with the Greek word horos. One such stone was used to indicate the edge of the Athenian agora. The practice of separating areas of land with boundary stones, though common, was widely considered by classical writers to be a violation of the principle of communal land ownership.