Answer:
Not really anyone, but it started because someone from Germany killed Archduke Franz Ferdinand of Austria.
The realist painters didnt accept Romanticism, which had come to dominate French literature, with roots in the late century. The characters were portrayed in their own setting which shaped their actions and their choices .
Here's a few things: Early settlers hunted their own food/ harvested their own food. They also made their own tools, weapons, clothes, means of transportation by hand and with the materials of nature surrounding them. Hope this helps!