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red scare
a period of anticommunist sentiment and hysteria.started in russia and it spread through europe -
John Larson
He invented the lie detector. in the picture above shows the lie detector being used. -
Garret A. Morgan
He evented the traffic signal. He was born in paris to former slaves. -
monkey trial
the state of tennesse vs john thomas scope. famous trial known as the scopes monkey trial when a high school teacher violated the butler act. it was unlawful to teach evolution -
first pilot to fly solo
Charles Lindbergh was the first pilot to fly solo. He was a aviation pioneer. He e flew non-stop across atlantic from us to france. the plane was called THE SPIRIT OF ST. LOUIS -
stock market crash
also known as black tuesday, new york stock exchange crashed as stock prices fell.it caused banking crisis and the beginning of the great depression
