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Timeline Difference
publish date: 1969/12/31 00:00:00 UTC
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An event occurred in 250 BC (-250) and another in 150 AD (150). How many years passed between these two events?
Correct Answer
400 years
Explanation
Subtract the earlier year from the later year: 150 - (-250) = 150 + 250 = 400.
Reference
Mathematics for college students