The 20th-century events include many notable events which occurred throughout the 20th ... Already in the 19th century, the United States had become an influential actor ... Many people saw this as the first stage of the end of the capitalist system and .... Three days later, Marshal Philippe Pétain surrendered to the Germans.
Answer:
Explanation:
California's Mines After the Gold Rush As gold became more and more difficult to reach, the growing industrialization of mining drove more and more miners from independence into wage labor. The new technique of hydraulic mining, developed in 1853, brought enormous profits but destroyed much of the region's landscape.