What from the columbian exchange had perhaps the biggest impact on the world?

The Columbian Exchange greatly affected almost every society on earth, bringing destructive diseases that depopulated many cultures, and also circulating a wide variety of new crops and livestock that, in the long term, increased rather than diminished the world human population.

the decreasing neutrality of the u. s. in world war i

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a.  

women in ancient egypt had many legal rights, including the right to own property and businesses.