I would say American Revolution because it was known as a 'world war' at that time. It also told countries that the 13 colonies were now known as the United Stated is America. The American Revolution had a greater impact. The French Revolution gained strength and motivation from the Americans. The US Constitution remains the oldest document that continues to maintain a democracy. I would agree as well. While the French Revolution seems to be more revered around the world, the fact remains that the French were highly inspired by the Americans' successful revolution less than ten years prior. The Americans showed that it was possible for the people to overtake a monarchy. Of course, the French fell victim to their own revolution as did the English and both restored monarchical-type rulers. The American Revolution remains singular in that it didn't fall into the hands of a dictator/tyrant/monarch.