What is man's greatest invention? You tell me. I personally think its fire (though its not really an invention, a discovery). What would we do without fire? We'd die.
So.... just tell me what it is in your opinion and tell me why. Do I really have to tell you not to spam, flame or troll?
The first invetions were the best; because they were the sources for all modern inventions; for example the computer. Think it like Doodle God when the elements is inventions.
