What year was the city if Rome founded? As a city, who rule Rome?

April 21, 753 BC

According to tradition, on April 21, 753 B.C., Romulus and his twin brother, Remus, found Rome on the site where they were suckled by a she-wolf as orphaned infants.

Explanation:

After 650 BC, the Etruscans became dominant in Italy and expanded into north-central Italy. Roman tradition claimed that Rome had been under the control of seven kings from 753 to 509 BC beginning with the mythical Romulus who was said to have founded the city of Rome along with his brother Remus.