The most important invention I know of that hasn't been taken is the airplane. It makes our life easier because it is quicker than a car, boat or sub-marine. The Wright brothers invented the airplane in Kitty Hawk, North Carolina in 1903. Airplanes look like this:
757
a380
a380
747
737
767
a319
back, 777. middle and front, s80 (s = super)
757
a380, I flew on this one to Australia!
747
a380
747, I flew on this exact plane from my little friend Google images.
747
747
This is the inside of the new 787!
All Southwest airlines are 737's.
737
737
737
737
737
737
737
737
737
737
737
737
737
737
737
737
737
757
737
747 (I don't know what company this is. But, I do know that the company is a Japanese company.)
I really like airplanes! I can't wait until the Boeing 787 comes out, which will be the biggest aircraft ever! I am not sure but I think that it is 3 floors!