Neptunalia: Meaning (information, definition, explanation, facts)

The Neptunalia an obscure archaic two-day festival of Neptune as god of waters, celebrated at Rome in the heat and drought of summer, probaby July 23 (Varro, De lingua latina vi.19). It was one of the dies comitiales, when committees of citizens could vote on civil or criminal matters. In the ancient calendar this days is marked as Nept. ludi et feriae, or Nept. ludi, from which Leonhard Schmitz (in Smith, see link) concluded that the festival was celebrated with games. Respecting the ceremonies of this festival nothing is known, except that the people used to build huts of branches and foliage (umbrae, according to Festus, under " Umbrae"), in which they probably feasted, drank, and amused themselves (Horace Carminae iii.28.1, &c.; Tertullian De Spectaculae ("On Celebrations") 6). Compare the archaic "booths" under which Jews celebrate the Feast of Tabernacles, Succot.