After world || what european city was cut in half by an infamous wall ?

How were returning african-american soldiers treated in american cities in 1919–1920?

Which two sentences in this passage talk about china’s efforts to curb environmental degradation?

The author of the article, arthur brooks, has been president of the american enterprise institute since 2009, an organization committed to protecting free enterprise in the united states. he is the author of several books, including "the road to freedom: how to win the fight for free enterprise."