 This is the Indo-European god called Agni, a fire god in Hinduism with Agni itself being a Sanskrit word meaning fire. It is thought by many to be a reconstruction of an older Proto-Indo-European fire god, with references to this god found in other Indo-European languages, in the Latin word Ignis for instance, which is where the English word Ignite comes from. Next up is an old Proto-Indo-European god called the Auspiter, meaning father daylight sky god. Various other gods of later cultures are associated with this sky god, including the Roman god of the sky and thunder, Jupiter, whose name comes from the Proto-Italic term, Zeus, meaning day or sky, and Peter, meaning father. Next up is Mithra, an ancient Iranian deity of light and oath, who is connected to the Hindu god Mithra. How did the Indo-European spread across nearly half the world? To find out click below.