In “A Revolution for All Mankind”, Princeton historian Allen Guelzo reveals the global impact of the U.S. Declaration of Independence and the social and political paradigm shift behind its most famous line:

We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the pursuit of Happiness.

Guelzo’s article is a fascinating read and recommended for middle and high school students.