How has the approach to public health changed over the last 200 years? Which events or movements in public health and epidemiology were most influenti

How has the approach to public health changed over the last 200 years? Which events or movements in public health and epidemiology were most influential? Why?
What is the relationship between research- and evidenced-based cares?
Provide a health care field-related example illustrating why this relationship is important.
What is epidemiology? Why is this important to community health?
Provide an example of its importance within your community…