jan 1, 1898 - Marie & Pierre Curie
Description:
The French physicists and chemists discovered that radioactivity doesn't depend on how atoms are arranged into molecules, instead, they actually originate within the atoms themselves. They also discovered the elements polonium and radium. They were awarded a Nobel Prize for their discoveries as well.Added to timeline:
Date:
jan 1, 1898
Now
~ 127 years ago