in 1927 the first film with sound was released. the film was a staple in american culture as it improved upon already new video camera technology
The first Mickey mouse cartoon was released in 1928. It was called steamboat willie. part of the cartoon is in the opening of many other Disney animations
In 1922 king tuts tomb was discovered. This fueled other archeology findings in later years
Jackie robinson was the African American to be in major leage baseball. This was a turning point for history
The great depression lasted from 1929 to 1939 when the stock market crashed
Einsteins publication of his e=mc squared equation put america on its way to creating the atomic bomb
Henry ford did not invent the car but did make it more mass produced. he is often thought of as one of the nations's leading businessmen and helped the economy when it was most vulnerable.
on may 21st 1919 the 19th amendment was ratified. this allowed women to vote in elections.
the Wright brothers are two of the most important people in history. Wilbur and Orville wright built the airplane. contrary to popular belief they did not build the first flying machine. many people before them had built flying machines. such as the hot air balloon in France in 1783 and gliders by German aviator Otto Wiesenthal. the only difference in the wright brother's plane was that it was the first powered one.
the first world war caused the u.s. and many other countries to rethink what war was and re-defined modern warfare