
Early National America
110
thousands  of  covered  wagons  and  tens  of  thousands  of 
American migrants, a series of events drew the attention of 
many Americans to the region of the Willamette Valley in the 
Oregon Country. As early as 1792 an American ship captain 
named Robert Gray had visited the Oregon coast and sailed 
into the Columbia River, seeking trade with local Indians. 
He named the river after his ship, the Columbia Rediva. Gray 
carried with him a letter from President Washington, which 
was to serve as an introduction to any emperors or kings of 
the lands Gray might reach. Sailing up the Columbia, Gray 
soon traded several bolts of cloth and some sheets of copper 
with the local American Indians for 3,000 sea otter pelts. He 
also traded two nails for 600 beaver skins. 
iMMigranTs TO aMeriCa
During the 40-year span between 
1790 and 1830, the population of the 
United States more than tripled, rising 
from 4 million to 13 million people. 
Nearly all of that growth was through 
natural increase—Americans having 
babies and large families. Only about 
400,000 foreigners arrived in America 
during those decades. It would be 
in the years following 1830 that 
large numbers of immigrants began 
reaching American shores. 
In the decade of the 1840s, over 
1.5 million immigrants came to settle 
in the United States. Nearly half of 
these people came from famine-
stricken Ireland. In the 1850s, well 
over 2.3 million more people saw 
the hope of new opportunity in the 
land west of the Atlantic. Why did so 
many people come to America during 
these years? There are many answers. 
As mentioned, a great famine struck 
Ireland in 1846. This, added to the 
poor working conditions, brought 
tens of thousands of people to the 
States. From Germany, thousands 
fl ed their homeland during the years 
1848–49, when a revolution against 
political oppression failed. 
Many other Europeans came to 
America to make their fortunes, or 
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