CAPITOLINE HILL
"...It was originally called the Hill of Saturn, being occupied by Romolus as a defence for the Palatine Hill, and was betryed to the Sabines by Tarpeia, the daughter of the commandant of the fortress. When the Palatine and the Capitoline Hills were united into one city, and the two kings reigned together, the name ofthe hill was changed and called the Tarpeian Hill.In the 138th year after the foundation of Rome, when Tarquin the Great was making the foundations for the great temple of Jupiter, they found a human head; and the oracle told them that the spot where the head was found should become the head of the world; and so they changed the name of the hill again, and called it the Capitoline Hill..."
Rambles in Rome
S. Russell Forbes
1882