There were many famous geographic expeditions that occurred in the 1900s but perhaps the most famous was the north pole expedition to look at polar bears.
They are literature movements that occurred in the 1900s and early 2000s.
Wizardry
They are types of architectural styles of the early 1900s.
Treaty of Versailles
Working men could vote, secret ballot
it was yedam kim
oscar wilde
Peter Tchaikovsky
Some famous scientists in the 1900s include Albert Einstein, Marie Curie, and Niels Bohr. Einstein is known for his theory of relativity, Curie for her work on radioactivity, and Bohr for his contributions to quantum theory.
D. L. Moody
L. Frank Baum
the most famous celebrity from the 1900's was doofy the dufus. he grew bannanas out of his ears.