Ma'am I work here. Anyway, Hippocrates is important to humanity today. He made cures for diseases. At the time, people thought diseases were caused by witchcraft, but Hippocrates proved them wrong. We wouldn't have cures for illnesses and we'd be dead without him.
WHEN DID YOU GET HERE?
Here is Thales, the first natural scientist. When he was alive, people thought thunderstorms and such were caused by angry gods. Thales proved them wrong and belped them survive natural disaters and other things, though people would someday figure out how to avoid them and survive.