Which event caused problems for farmers in the united states

As more and more crops were dumped onto the American market, it depressed the prices farmers could demand for their produce. Farmers were growing more and more and making less and less. ... Of all the problems facing the farmer, I believe that overproduction was the gravest because it caused so many other difficulties.

the first forms of writing came from them in the form of pictographs around 3100 bc.