With which tribe did the early Romans join?

The early Romans primarily joined with the Sabines, a neighboring tribe, in a significant cultural and political alliance. This union is particularly noted in Roman mythology concerning the establishment of Rome. According to the legend, the Romans, led by Romulus, initially had a predominantly male population. To ensure the growth of their community, Romulus orchestrated the famous event known as the "Rape of the Sabine Women," where Roman men abducted women from the Sabine tribe to become their wives. This act not only increased the population of Rome but also led to eventual integration and cooperation between the two groups, fostering a sense of unity and shared identity.

The Sabines thus play an essential role in the early history of Rome, exemplifying the merging of different cultures and tribes that characterized the formation of the Roman state. In contrast, while the other groups mentioned such as the Latins, Greeks, and Etruscans influenced Rome in various ways over time, the immediate alliance and cultural interaction were most notably seen with the Sabines during the early period of the city's formation.