"the shot heard 'round the world" marked the beginning of the american revolution. during which conflict(s) was this shot fired

List three reasons why explorers began to explore new, and old areas. [[ps: doesn't explicitly say where. i think it's more in general.

How were castas paintings used to stabilize a society?

Which of the following people did not run for president in 1848. a. lewis cass. b. zachary taylor. c. martin van buren. d. millard fillmore.