Why did Thomas Paine write Common Sense?

What motivated Thomas Paine to write Common Sense? ... After the Battles of Lexington and Concord in 1775, Paine argued that the colonists' cause should be not just a revolt against taxation but a demand for independence. He put this idea into Common Sense.

Explanation: sorry if its wrong

the foundation of greek city-states: following the fall of the mycenaean civilization in the 10th century bc, the area surrounding the empire went through its own mini dark ages. answer and explanation