Upton Sinclair, Frank Norris and Ida Tarbell made their greatest contributions to the Progressive movement by (4) publishing books and articles to expose the problems of society. Upton Sinclair wrote a book which showed the dangerous and unsanitary lives workers of the Meatpacking District went through on a daily basis, Frank Norris exposed the struggle railroad workers go through with their bosses and the unfairness of the railroad workers life in California and Ida Tarbell wrote about the manipulative men behind the oil trade.
He wanted more land for the new coming settlers
Answer:
I forget what it's called but in 1905 the Russian royal guard shot innocent peasants, which led to Russia's independence in 1918 and the switch to communism.