Slaves couldn't vote, and if you were in the south as a black, the Grandfather law was there, which said that if your grandfather voted, you could vote. So, it depends.
Progressivism was the reform movement that ran from the late 19th century through the first decades of the 20th century, during which leading intellectuals and social reformers in the United States sought to address the economic, political, and cultural questions that had arisen in the context of the rapid changes brought with the Industrial Revolution and the growth of modern capitalism in America. The Progressives believed that these changes marked the end of the old order and required the creation of a new order appropriate for the new industrial age.
America was very interested in Cuba because of the crops/resources they grew in their country. Since Cuba is only 90 miles from the United States, the government wanted to make sure that this country would be open to American influence/trade. This resulted in America establishing a trading relationship with Cuba, primarily receiving sugar from this country. However, this relationship would not last forever, as the leader of Cuba who was friendly with the US (Batista) was replaced by Fidel Castro, an anti-American communist.
I think the constitution prohibits the enactment of ex post facto.
Rome, as Italy was an Axis Power during World War 2. Remember to check yourself.
Hope this helps :)