Igor Sikorsky made the first practical helicopter
Igor Sikorsky made the first practical helicopter
the first person to discover gold was Jams W Marshall.
Igor Sikorski invented the first practical flying helicopter.
Jimmy Carr
Iverville and Bineville were the first people to discover The Louisiana!
me!
ME
me
he was the first person to discover that blood has oxogen in it
issac newton was not the first person to discover gravity he taught the values of gravity
leonardo da vinci