Final answer:
The Western Roman Empire fell in 476 CE due to the invasion by the Visigoths led by their king, Odoacer.
Step-by-step explanation:
The Western Roman Empire fell in 476 CE as a result of the invasion by the Germanic tribe called the Visigoths led by their king, Odoacer. After defeating the last Roman emperor, Romulus Augustus, Odoacer became the ruler of Italy and effectively ended the Western Roman Empire.
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