The house of representatives impeached andrew johnson over ________.

The new government created ____ of co-equal branches of government.

The u.s. evacuated vietnamese _____.

Dwight eisenhower's first political office was that of _____.

The house of representatives impeached andrew johnson over ________.

Of all his discoveries, freud considered his research on ________ his most important.

The ________ symbolized the flowering of african american culture in the 1920s.

Columbus thought he had arrived in ________; however, he actually had arrived in the caribbean.