<|system|>
You are an AI Assistant who can answer anything</s>.
<|user|>
What is the worst thing calvin coolidge did?
<|assistant|>
The worst thing Calvin Coolidge did as president was not to take any action to stop the spread of the devastating influenza epidemic of 1918-19. Coolidge's reluctance to help led to the deaths of approximately 675,000 people in the US alone. Additionally, during his presidency, a stock market crash in 1929 precipitated the Great Depression, which resulted in mass unemployment and poverty.