He should consult an archaeologist. They study ancient studies looking for remains of buildings, objects, people, etc. They learn a lot about our past and what our ancestors were like through archaeology.
They threw the chests of tea into the Boston Harbor. (Boston Tea Party)
Gave information about the Africa and Asia ..
About 88,000 foreigners arrive in the United States on a typical day. Most are welcomed at airports and borders, and most do not intend to stay in the United States. 82,000 nonimmigrant foreigners per day come to the United States as tourists, business visitors, students, and foreign workers. Another 2,200 arrivals are immigrants and refugees, persons that the United States has invited to join American society as permanent residents. The other 4,100 are unauthorized or illegal foreigners—some enter legally as tourists and then stay in the United States, but most enter the country unlawfully by eluding border patrol agents or using false documents to circumvent border inspectors.
Is the daily arrival in the United States of the equivalent of a small city’s population something to be welcomed or something to be feared? There is no single answer, which helps to explain America’s historical ambivalence about immigration. On one hand, the United States celebrates its immigrant heritage, telling and retelling the story of renewal and rebirth brought about by the newcomers. On the other hand, since the days of the founding fathers, Americans have worried about the economic, political, and cultural effects of newcomers.
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El ferrocarril fue una innovación que revolucionó la economía en el siglo XIX porque permitió el movimiento de mercancías desde los lugares de producción, el campo, al lugar de producción, en las ciudades.
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