Important Scientists
Throughout scientific history, many developments and discoveries have been made by thousands and thousands of scientists, but I feel the one person that has made a big impact on humanity is Sir Alexander Fleming. ... Alexander later discovered a very important antibacterial substance by accident called penicillin. ... I think he opened up a door to scientists to discover more innovated medications to treat some of the more severe cases of illness that thrived throughout the century. Scientists could develop different treatments through the use of mold and other fungi.