The Great Potato Famine was the result of crop failures in Ireland’s most stable crop caused by airborne fungus. This event shows how natural disasters don’t only effect the present lives of peoples, but also the history. Because of the widespread famine that was created by the crop failures, many families immigrated to the U.S. Irish immigrants had a big impact on US history because of their influences on labor movements, social organizations, and political movements. One of the most interesting aspects is the creation of the many gangs made up of minority groups in the United States, and their relation to the creation of the fire department. Before there were official fire brigades, Gang members made up the fire departments because insurance companies would pay a reward to companies that arrived first. Though inefficient , these companies inspired the formation of an official fire department in New York.