Mastoidectomy is a surgical procedure to remove an infected portion of the bone behind the ear when medical treatment is not effective. This surgery is rarely needed today because of the widespread use of antibiotics.astoidectomy is a surgical procedure to remove an infected portion of the bone behind the ear when medical treatment is not effective. This surgery is rarely needed today because of the widespread use of antibiotics.
The Germans had little choice â few other places besides the United States allowed German immigration. Unlike the Irish, many Germans had enough money to journey to the Midwest in search of farmland and work. The largest settlements of Germans were in New York City, Baltimore, Cincinnati, St. Louis and Milwaukee.n the decade from 1845 to 1855, more than a million Germans fled to the United States to escape economic hardship. They also sought to escape the political unrest caused by riots, rebellion and eventually a revolution in 1848.
The history of immigration to the United States deals with the movement of people to the United States since the first European settlements in about 1600.Starting around 1600 British and other Europeans settled primarily on the east coast.rom 1880 to 1924, around two million Jews moved to the United States, mostly seeking better opportunity in America and fleeing the pogroms of the Russian Empire. After 1934 Jews, along with any other above-quota immigration, were usually denied access to the United States.