According to legend Remus founded Rome on this hill on the 21st of April, 753 B.C. There has been a settlement here from the beginning of the first century B.C. and on this site archeologist have found remains of the oldest city walls (730-720 B.C.).
Augustus build his palace on this hill, near the location of the house of Remus, as a claim to the in heritage of the founder of the city. After him most emperors took this area as their residence, which lead to its sole usage for the imperial palaces that now lay in ruins all over this hill.