Name one area in which Americans were calling
for reform at the turn of the twentieth century.

One area Americans reformed were in Worker's rights.

Explanation:

At the turn of the twentieth century, Americans were calling for reform in a great variety of areas. This was the Progressive period, and many Americans were looking for ways in which politics and society could be improved. One example was the case of worker's rights. During these time period, workers often received very low wages. Moreover, child labor was common, and working conditions were often uncomfortable and unsafe.

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