What supreme court case established the clear and present danger doctrine?

Where did zebulon pike spend most of his time exploring?

How did the mexican war of independence differ from the american revolution? o a. only the american revolution was concerned with establishing a representative form of government. o b. only the mexican war of independence required military conflict to achieve its objectives. o c. only the american revolution succeeded in replacing a monarchy with another form of government. o d. only the mexican war of independence eliminated spanish colonial control over part of north america.

In 1840 which route is the easiest to take to travel from baltimore, maryland, to vandalia, illinois? a-chesapeake and ohio canal. b-wilderness road c-national road d-erie canal