Interesting Inventions of The 20th Century
The Airplane 1903 Invented by Orville and Wilbur Wright in North Carolina
The Crossword Puzzle 1913 Invented by Arthur Wynne for the New York World
Windshield Wipers 1916 Invented by Mary Anderson who opened the door for women inventors
The Automatic Traffic Signal 1923 Invented by Garrett Augustus Morgan, a businessman
Penicillin 1928 Invented by Alexander Fleming, Dorothy Crowfoot Hodgkin, John Sheehan, and Andrew Moyer