The Visigoths (UK: /ˈvɪzɪˌɡɒθs/; US: /ˈvɪzɪˌɡɑːθs/, Latin: Visigothi, Wisigothi, Vesi, Visi, Wesi, or Wisi) were branches of the nomadic tribes of Germanic peoples referred to collectively as the Goths. These tribes flourished and spread during the late Roman Empire in Late Antiquity, or the Migration Period. The Visigoths emerged from earlier Gothic groups (possibly the Thervingi) who had invaded the Roman Empire beginning in 376 and had defeated the Romans at the Battle of Adrianople in 378.