Stelaes

A stele (/ˈstiːli/, STEE-lee) is a stone or wooden slab, generally taller than it is wide, erected in ancient Western culture as a monument. Grave steles were often used for funerary or commemorative purposes. Stelae as slabs of stone would also be used as ancient Greek and Roman government notices or as boundary markers to mark borders or property lines.

The surface of the stele usually has text, ornamentation, or both. The ornamentation may be inscribed, carved in relief, or painted.

Traditional Western gravestones may technically be considered the modern equivalent of ancient stelae, though the term is very rarely applied in this way. Equally, stelae-like forms in non-Western cultures may be called by other terms, and the words "stele" and "stelae" are most consistently applied in archaeological contexts to objects from Europe, the ancient Near East and Egypt, China, and sometimes Pre-Columbian America.

Steles have also been used to publish laws and decrees, to record a ruler's exploits and honors, to mark sacred territories or mortgaged properties, as territorial markers, as the boundary steles of Akhenaton at Amarna, or to commemorate military victories. They were widely used in the Ancient Near East, Mesopotamia, Greece, Egypt, Somalia, Eritrea, Ethiopia, and, most likely independently, in China and elsewhere in the Far East, and, independently, by Mesoamerican civilisations, notably the Olmec and Maya.

...
Wikipedia