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.
German Americans are Americans who have full or partial German ancestry. With an estimated size of approximately 44 million in 2016, German Americans are the largest of the ancestry groups reported by the US Census Bureau in its American Community Survey. The group accounts for about one third of the total ethnic German population in the world. None of the German states had American colonies. In the 1670s, the first significant groups of German immigrants arrived in the British colonies, settlin