The Western Roman Empire fell in the late 5th century AD, marking the end of ancient Rome's dominance in the West. 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 deposed by the Germanic leader Odoacer, symbolizing the official end of the Western Roman Empire. This event is often seen as a significant turning point in history, leading to the rise of the Middle Ages in Europe.