When the twins grew up, they returned to their birthplace and decided to build a city. However, they disagreed about the location, and Remus was killed in the dispute. Romulus went on to found the city of Rome and became its first king.
The story of Romulus and Remus is a founding myth, which means it is a story that explains the origins of a nation or a people. Founding myths are often based on real historical events, but they are also embellished with legendary elements.
In the case of the story of Romulus and Remus, there is some evidence to support the claim that the city of Rome was founded around the 8th century BC by a group of Latin tribes. However, the details of the legend, such as the she-wolf and the fratricide, are clearly mythical.
Nonetheless, the story of Romulus and Remus remains an important part of Roman mythology and culture. It is a reminder of the city's humble origins and the importance of brotherly love and cooperation.