Answer:
Invasions by Barbarian tribes
Explanation:
The most straightforward theory for Western Rome's collapse pins the fall on a string of military losses sustained against outside forces. Rome had tangled with Germanic tribes for centuries, but by the 300s “barbarian” groups like the Goths had encroached beyond the Empire's borders.
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John of Leiden, was an Anabaptist leader from Leiden, in the Holy Roman Empire's County of Holland.
