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Period: to
four wars
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Civil War Begins
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Civil War Ends
I don't know the exact date only the year -
WW1 begins in Europe
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US enters WW1
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WW1 ends
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WW2 starts
Germany invades Poland -
Bombing of Pearl harbor
I don't know exact date only year -
WW2 ends
I don't know exact day -
Betty Crocker Cake mix was introduced
I don't know the exact date.