Romans largely came, to obtain for him the minute details of the rites
suitable for the occasion.

At the proper moment he began the Etrurian ceremonies, by digging a
circular pit down to the hard clay, into which were cast with great
solemnity some of the first-fruits of the season, and also handfuls of
earth, each man throwing in a little from the country from which he had
come. The pit was then filled up, and over it an altar was erected,
upon the hearth of which a fire was kindled. Thus the centre of the new
city was settled and consecrated. Romulus then harnessed a white cow
and a snow-white bull to a plow with a brazen share, and holding the
handle himself, traced the line of the future walls with a furrow
(called the pomoerium [Footnote: _Pomoerium_ is composed of _post_,
behind, and _murus_, a wall. The word is often used as meaning simply a
boundary or limit of jurisdiction. The _pomoerium_ of Rome was several
times enlarged.]), carrying the plow over the places where gates were
to be left, and causing those who followed to see that every furrow as
it fell was turned inwards toward the city. As he plowed, Romulus
uttered the following prayer:

_Do thou, Jupiter, aid me as I found this city; and Mavors_ [that
is, Mars, the god of war and protector of agriculture], _my father,
and Vesta, my mother, and all other, ye deities, whom it is a religious
duty to invoke, attend; let this work of mine rise under your auspices.
Long may be its duration; may its sway be that of an all-ruling land;
and under it may be both the rising and the setting of the day._

It is said that Jupiter sent thunder from one side of the heavens and
lightnings from the other, and that the people rejoiced in the omens as
good and went on cheerfully building the walls. The poet Ovid says that