What effect did voting laws like the poll tax have on African-Americans?

Which of the following acts or treaties tried to american indians?

Which major change took place in nigeria in 1999?

Plz , ive been stuck on this forever. what action did president jefferson take to stop britain and france from seizing american merchant ships. a. he declared war on france. b. he called for increased tariffs on british and french goods. c. he called for embargo on all foreign trade. d. he declared war on britain.