From the New World to the Old World
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The Columbian Exchange refers to the exchange of plants, animals, and diseases caused by contact between the Old World (Europe, Asia, and Africa) and the New World (the Americas). This biological exchange began with Columbus's arrival in 1492, and continued as Europeans continued to explore and come into contact with people, plants, and animals in other parts of the Americas that had not been exposed to European diseases, plants, and animals. An end date is harder to pinpoint. Since the Exchange refers to items that at one time had never been outside of their original hemisphere, once the biological elements that were once unique to their specific hemispheres had been introduced to the other, that exchange would assumedly be over.
Prospectors during the Gold Rush of 1849.
When the Confederates ran out of manpower (thanks to Grant's ending of prisoner-exchange), and the battle-lines literally grew too thin to hold.
A person who comes into a country from another country, usually for permanent residence.Someone coming into a new country from a different one.(an emigrant is one who emigrates, or leaves - an immigrant is one who comes in)
they died during the civil war. how rude