Human's greatest invention

What is Man’s greatest Invention In my opinion man's greatest achievement was the wheel. Now, before people start disagreeing with me and getting all upset here is my evidence and proof why ,in my opinion, the wheel is humans greatest invention. Can you imagine going ONE whole day without using wheels of any shape or size? This means no car, no bike, no scooter. Even some chairs have got wheels on them! Wheels have completely changed the way that humans do things. The impact that the wheel has had is HUGE. Cars, Trucks, even some boats now have wheels! From moving yourself and other people to moving building supplies and and heavy items the wheel has completely changed the way man does things. There is all different shapes and types of wheel used in a massive variety of different things. Little wheels on the bottom of office chairs to two metre tall tractor wheels. Wheels have changed so much from the tree trunks that they used to be. The wheels on cars are now metal spokes attached to a thick metal ring with heavy rubber around it. The oldest known wheel found in an archaeological excavation is from Mesopotamia, and dates to around 3500 BC.(Mesopotamia is a name for the area of the Tigris–Euphrates river system, This is about where Iraq, Kuwait and Syria are now) and was basically a piece of tree trunk sliced up. If you have made it this far down my blog post without clicking off it, look around and see how many wheels you can see. Can you imagine trying to go one whole day without using one wheel? Thank you for reading this blog post. The wheel is, in my opinion Mankind’s greatest invention.