Sigma (couch)

The Ancient Roman furniture, sigma was a semi-circular couch sometimes used at banquets instead of the triclinium.[1] Its name comes from the lunate sigma (upper case C, lower case ϲ) — which resembles, but which is not at all related to, the Latin letter C and was used in Eastern forms of Greek writing and in the Middle Ages.

For other uses, see sigma (disambiguation).

Notes
  1. The Roman banquet: images of conviviality, Katherine Dunbabin, 2003, p. 166
gollark: Suuuuure.
gollark: Very... exciting?
gollark: The UK government seems to have a rough idea of what it is, and randomly throw around stupid buzzwords like 5G.
gollark: I'm surprised they didn't block osmarks.tk, given the subversive content it hosts.
gollark: All hail supreme leader Erdogan™, sponsored by PotatOS™.
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