Numa had eleven other shields like it made and hung in the temple of Mars, and, yearly, a set of men dedicated to the office bore them through the city with songs and dances.

Just as all warlike customs were said to have been invented by Romulus, all peaceful and religious ones were held to have sprung from Numa and his Egeria.

He was said to have fixed the calendar and invented the names of the months, and to have built an altar to Good Faith to teach the Romans to keep their word to one another and to all nations, and to have dedicated the bounds of each estate to the Dii Termini, or Landmark Gods, in whose honor there was a feast yearly.

He also was said to have had such power with Jupiter as to have persuaded him to be content without receiving sacrifices of men and women.

In short, all the better things in the Roman system were supposed to be due to the gentle Numa.
At the gate called Janiculum stood a temple to the watchman god Janus, whose figure had two faces, and held the keys, and after whom was named the month January.