Answer: The California Gold Rush (1848–1855) was a gold rush that began on January 24, 1848, when gold was found by James W. Marshall at Sutter's Mill in Coloma, California. The news of gold brought approximately 300,000 people to California from the rest of the United States and abroad.
Explanation:
I think Louis XVI and Marie Antoinette should have been killed in the French Revolution. The royal couple had to move out of the castle because of a mob that marched Versailles. In August 1792 they were arrested by the sans-culottes. In September the monarchy was abolished by the national convention. In November evidence of Louis XVI counter revolutionary intrigues with Austria and other foreign nations. Marie Antoinette was later found guilty of treason and was put to death
A main reason that the age of revolutions initially failed to achieve widespread change in some nations of Europe was because many of these failed revolutions took place in the "backyards" of their mother countries--meaning that they were easily taken down with military power.