National Association of Professional Base Ball Players
E321989
UNEXPLORED
The National Association of Professional Base Ball Players was the first fully professional baseball league in the United States, operating in the early 1870s and laying the groundwork for modern Major League Baseball.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| 1873 National Association pennant | 1 |
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
National League
this entity surface form:
1873 National Association pennant