According to the legend it was founded by demigods and two brothers Remus and Romulus on 21st April 753 BCE. Later the brothers got into a fight over the argument that who would rule the city and Remus was killed by Romulus. He named the city after himself. According to other legend they fought over the location of the city
Foundation of Rome is the first event while all others events occurred later.
In teh seventh century BC, Rome was founded by Romulus and Remus. Among the other civilizations, the Roman Empire is said to be very great and influencing. Julius Caesar is said to be the ruler who popularized and efficiently ruled Rome.
The event that would appear first on the timeline is will be the foundation of Rome. The preceding event will be the burning of most of the parts of Rome. The building of the Colosseum happened later. The splitting of Rome will be the last event according to the given options.