The government had to pass laws such as the Sherman Antitrust Act to control the

The Sherman Antitrust Act is the first measure passed by the U.S. Congress to prohibit trusts, monopolies, and cartels. The Act's purpose was to promote economic fairness and competitiveness and to regulate interstate commerce. It was proposed, and passed, in 1890 by Ohio Senator John Sherman.

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nothing certain is known about what happened, but it seems that the country declined gradually, perhaps due to bad government, or, more likely, due to a series of bad harvests, which resulted in widespread and recurrent famine.