Willie Tidwell
because that is how nature made them!!!!!!!!!!! everybody KNOWS that
pigskin
well enegerners manly are making footballs today
Leather made out of cowhide and filled with air.
Narnia
well enegerners manly are making footballs today
It is so old that no one today knows who made the first clamp.
Back then it was made of pigskin and people called "tossing around the ol' pigskin." But today it is made of leather.
No one knows for sure but the trumpet we know today was made by Heinrich Stölzel and Friedrich Bluhmeh
It might be part of of the chorus in "Hearts Made of Stone" by Kay Starr. Was popular in the mid-1950's. Here are the words: "no, no, no, no, no everybody knows, I thought you knew - hearts are made of stone."
Julius Caesar made up the Julian calendar complete with the 12 months everybody knows way back in the day of the Roman Empire. Many centuries later, Pope Gregory decided to make some small changes to the Julian Calendar and the Gregorian calendar is now the (unofficially) global standard calendar that pretty much everybody today uses.
That answer is still among research by scholars today. Nobody really knows for sure why the pyramids were created.