This list includes some of the most innovative, ground breaking inventions ever. Each invention listed here in some way changed history, altering the way we live our lives. Some inventions, like medicine, help to extend our lives and others, like the wheel, changed the way we get around, transport goods and just generally do anything. Which of mankind's inventions do you believe is the most important? Time to vote, and be sure to re rank this list in any order you like.