Well there are two ways of really explaining this, but "The Common Good" by definition is something that benefits or interests of everyone.
The political term, is literally the same thing; "What is shared and beneficial for most members of a given community"
Hope this is the answer you are searching for.
The League of Nation was established
Corruption, war/conflicts, and foreign interference and humanitarian abuses.
<span>The progressives were successful in reforming the federal government's taxes. In 1913, Woodrow Wilson enacted the Revenue Act of 1913, which included a graduated income tax - a tax that taxes the wealthy at a higher rate than those who are not as well off.</span>