There are many heroes in this world, but not all of them are famous. Scientists, inventors and just everyday heroes are far less known than the latest movie star, a fact that is just a little sad. But these people didn't do what they did for glory, they did it to help, and so they did. Here are 10 people who have, in their own ways, saved countless lives and at times, the entire planet. They deserve to be known.
1. Maurice Ralph Hilleman.First on our list is the man who saved more lives than ANY other medical scientist in the 20th century. How did he do it? Hilleman, who unfortunately passed away a few years ago, was an American microbiologist who developed over 36 vaccines, many more than any other scientist. Among those vaccines: Hepatitis A, Hepatitis B, Chickenpox, Measles, Mumps, Meningits, pneumonia and types of influenza bacteria.