Wat was die verenigende faktor.
The risks and uncertainties of free labor didn't deter millions of immigrants from entering the US during the 1840s and 1850s. Almost 4.5 million immigrants arrived between 1840 and 1860, 6 times more than had come during the previous 2 decades. By 1860, foreign born residents made up about 1/8 of the US population, a fraction that held steady well into the 20th century. Nearly ¾ of the immigrants who arrived in the US during this time came from Germany or Ireland.
The entire region of Northern Africa and Southwest Asia has a climate generally described as "<span>B. Dry," since this land has historically been conducive to farming. </span>
