The Third Estate was composed of merchants and lawyers, many of whom were not of the French race. Therefore, as mentioned above, the powers of France were less inclined to give power to these people. Also, the peasantry. long oppressed, were of no consequence to the aristocracy who felt that they could be subjugated indefinitely. The aristocrats really did not perceive the peasants as a threat to their way of life. There continued oppression did, indeed, contribute to the rebellion of many.
The revolution began when the people united in their sense of oppression. Starving, with nothing to lose, they revolted. After all, often those who are desperate are the most dangerous. Some scientists hold that what little bread was produced in 1789 was moldy; they theorize that when many of the people ate enough, the injested mold caused the peasants to hallucinate. They, then, became irrational and the mob psychology took over. Whether all this is true, it makes for an interesting theory.