Inventions
Mechanically powered flight
Orville and Wilbur Wright
Santos Dummond
America
(Christopher Columbus)
Printing press
(Johannes Gutenberg)
Special relativity
(Albert Einstein)
Telephone
(Alexander Graham Bell)
The law of gravity
(Isaac Newton)
Lightbulb
(Thomas Edison)
Penicillin
(Alexander Fleming)
World Wide Web
(Tim Berners Lee)
Radioactivity (Marie Curie /Henry Becqerel)
(Marie Curie /Henry Becqerel)