Answer:
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Explanation:
Invasions by Barbarian tribes
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.
a primary source is a first-hand account event examples include newspaper letters Diaries photographs sketches and music in court cases recorded history and student and professional research is must analyze primary sources carefully says they are usually a record of only a single person experience
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Dropped the Atomic Bomb on Hiroshima and Nagasaki!