12 great gods/goddesses (six of each) with Vesta substituted for
Bacchus)
originally Jupiter + Mars + Quirinius; later Jupiter + Juno + Minerva
gods/goddesses of the underworld, such as Dis and Prosepina
a god/goddess/hero sworn by in oaths, usually Jupiter or Hercules
Genii
Genius loci
Lares
Penates
Manes
Lemures
Fata / Parcae
Furiae / Dirae
Nymphs
Rex Sacrorum
Augures
Haruspices
Flamines
Fetiales
Arval Priests
Augustales
Epulones
Salii
Luperci
Vestal Virgins
Terminology: Cultus, Pietas, Devotio, Lustratio, Mundus
Prayers
Vows
Sacrifices
Libations
"Artificial" Divination
"Natural" Divination
Oracles
Astrology
January
February
March
April
May
June
July
August
September
October
November
December
Eleusinian Mysteries
Bacchic Mysteries
Mysteries of Magna Mater
Orphism
Mithraism
Mysteries of Isis
Mysteries of Serapis