Which of the following best describes the segregation in cities in the late 1800s and early 1900s? Immigrants formed their own communities to support one another.
City planners forced ethnic groups to live in their own neighborhoods.
The wealthy class blocked the working poor from living in inner cities.
The growing middle class built their own communities in inner cities.

How were the european systems of mercantilism and capitalism similar during the 18th and 19th century

Which of the following was a goal of european conservation in the early 1800

The rise of advertising in the 1920s. i am good with seeing how advertisements shape the roaring twenties and how it developed a new way of life through modern days. but i am not sure what the details of advertising in the 1920s were. if possible can you send me links (preferrably credential links) to sources that maybe show like the first company to start advertising through the radio, how advertising benefits (statistics graphs), etc.