What would have happened if ...

 

Adolf Hitler's hatred for Jews dates back to his youth when, still without a specific ideology, he allowed himself to be duped by different anti-Semitic leaders of Austrian politics. Once he came to power in 1933 he made it clear in his speeches that the Jews were responsible for the German defeat in the Great War and progressively prohibited any fundamental right to a group that had been living in German lands for generations. His dream was for the Jews to disappear from Europe.

If Hitler had not had that ideal, thousands of Jews would not have died.

Fleming grew the mold in a pure culture and found that it produced a substance that killed various disease-causing bacteria. He identified the mold as belonging to the genus Penicillium and, after a few months of calling it "mold juice", on March 7, 1929 he named the substance penicillin.

If Fleming hadn't grown a mold, penicillin wouldn't have been discovered.

Hygiene and care began to be a concern for the State from the Industrial Revolution, in which it was necessary to clean up factories, from the seventeenth century. ... The first to value hygiene to avoid infections was the doctor Ignaz Semmelweis, who created the antiseptic procedure in 1847.

If hygiene concerns had started before the industrial revolution, many deaths from disease would have been prevented.

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