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.

Example input: In early work , Rutherford discovered the concept of radioactive half-life, the radioactive element radon, and classified three types of radiations: alpha, beta and gamma radiation .

Example output: Rutherford discovered the radioactive half-life, the chemical element radon, and the three parts of radiation which he named Alpha, Beta, and Gamma .

Example explanation: The output sentence is a simplified version of the input sentence.
Q: 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 .
A:
It was a major event in the history of public health , and the founding event of the science of epidemiology .