I'm not exactly sure what you mean when you say "discovering." However, Alexander Graham Bell is credited for inventing it. -THE SMOKE LIVES
radium
discovering
Christopher Columbus was an early explorer. He is credited with discovering the Americas.
Europe is the country credited with discovering America.
Euclid
leif erikson
Columbus
Martinus Beijerinck in 1898.
Marie Curie
Sir Humphry Davy in 1808
Florida
he is credited with discovering the Pacific Ocean.