In the late-19th century milwaukee, wisconsin, earned what nickname because of its swelling population of immigrants?

German Athens.

Explanation:

Milwaukee is Wisconsin's largest city, situated along the western shore of Lake Michigan. It is also one of the largest cities to be ever occupied by immigrants, instead of Americans.

Though Milwaukee had been experiencing influx of immigrants, it increases more by the 19th century. The German population helped majorly in this increase. The German residents of this city was such that there were more German newspapers than English ones. This eventually led to Milwaukee being called the "German Athens" in America.

the two things that develop a strong social foundation are: a. separation of church and states e. education received attention separation of church and states separate the illogical  argument that came from religious beliefs to a fact based belief. while education will make us remember the past to avoid the repeat of our mistakes.