Although this depends slightly on what period you're referring to during this time, the best answer would be that "Immigrants" made up the largest percentage of workers in American industry during the late nineteenth century, since the economy had shifted towards industrial output as opposed to agrarian output.
Answer:
Ottoman Empire, empire created by Turkish tribes that grew to be one of the most powerful states in the world in the 15th and 16th centuries.
Explanation:
Hope this helps!