1948 Democratic National Convention

The 1948 Democratic National Convention was held at Philadelphia Convention Hall in Philadelphia, Pennsylvania, from July 12 to July 15, 1948, and resulted in the nominations of President Harry S. Truman for a full term and Senator Alben W. Barkley of Kentucky for vice president in the 1948 presidential election. One of the decisive factors in convening both major party conventions in Philadelphia that year was that the eastern Pennsylvania area was part of the newly developing broadcast television market.

Source: Wikipedia — 1948 Democratic National Convention (CC BY-SA 4.0)