A tumulus (plural tumuli) is a mound of earth and stones raised over a grave or graves. Tumuli are also known as barrows, burial mounds or kurgans, and may be found throughout much of the world. A cairn, which is a mound of stones built for various purposes, may also originally have been a tumulus.
Tumuli are often categorised according to their external apparent shape. In this respect, a long barrow is a long tumulus, usually constructed on top of several burials, such as passage graves. A round barrow is a round tumulus, also commonly constructed on top of burials. The internal structure and architecture of both long and round barrows has a broad range, the categorization only refers to the external apparent shape.
The method of may involve a dolmen, a cist, a mortuary enclosure, a mortuary house, or a chamber tomb. Examples of barrows include Duggleby Howe and Maeshowe.
The word tumulus is Latin for 'mound' or 'small hill', which is derived from the Proto-Indo-European root *teuh2- with extended zero grade *tum-, 'to bulge, swell' also found in tumor, thumb, thigh, and thousand.
The funeral of Patroclus is described in book 23 of the Iliad. Patroclus is burned on a pyre, and his bones are collected into a golden urn in two layers of fat. The barrow is built on the location of the pyre. Achilles then sponsors funeral games, consisting of a chariot race, boxing, wrestling, running, a duel between two champions to the first blood, discus throwing, archery and spear throwing.