MC National health care systems were established as early as the 1860s in Europe. National health insurance for the United States was first proposed in the
A. Mid-twentieth century.
B. Mid-nineteenth century.
C. Early twentieth century.
D. Late twentieth century.
Question 2
MC Ancient civilizations understood the importance of clean water. The group most associated with developing systems to ensure water purity were the
A. Greeks.
B. Romans.
C. Egyptians.
D. Aztecs.
