Ignaz Semmelweis portrayed by an unknown painter.

1818 – 1865

Today we all know that washing our hands is the best way to kill germs, bacteria and viruses so that we don’t spread them. But the world didn’t know this until the 1840s, when a Hungarian doctor named Ignaz Semmelweis put forward the idea. However, many people at the time thought his idea was a bit crazy. Despite this, Dr. Semmelweis continued to do research to show that handwashing in hospitals and clinics could save lives. And thanks to his work many lives have been saved since then.

How tough is it to keep working for something you believe in when people don’t support you?