The "Fall of Rome" refers to the decline and eventual collapse of the Western Roman Empire, which occurred in the late 5th century AD. Several factors contributed to this decline, including economic troubles, military defeats, and political instability. The empire faced invasions from various groups, such as the Visigoths and Vandals, which weakened its borders and resources. In 476 AD, the last Roman emperor, Romulus Augustulus, was overthrown by the Germanic leader Odoacer, marking a significant point in the fall. This event is often considered the end of ancient Rome and the beginning of the Middle Ages in Europe.