Instructions: In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.
Input: This has been perceived as a major event in the history of public health and regarded as the founding event of the science of epidemiology , having helped shape public health policies around the world .
Output:
It was a major event in the history of public health , and the founding event of the science of epidemiology .