History question

Jefferson wrote, “[We believe] 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.” What drove Jefferson and the Second Continental Congress to pen such a statement?  Consider the following questions as you respond:

• How did this break from past interpretations of government and its role?
• How did under-represented groups, such as American Indians, slaves, and women interpret these words?
• In what ways did their interpretation of “all men” differ from how it is interpreted today?

just a paragraph or two will do