Were the Philadelphia Athletics a semi-pro or pro team?

Answer 1

There have been several professional Baseball teams called the Philadelphia Athletics: 1) The current Oakland Athletics American League team played as the Philadelphia Athletics between 1901-1954.

2) There was a team in the National League in 1876 known as the Philadelphia Athletics.

3) There was a team in the American Association known as the Philadelphia Athletics between 1882-1891.

4) There was a team in the Players League in 1890 known as the Philadelphia Athletics.

5) There was a team in the first Major League, the National Association, known as the Philadelphia Athletics between 1871-1875.