Bread
It's driving me crazy thinking about the origins of bread. Did some ancient guy accidentally whip up a loaf one day? I wonder how many years it took to perfect the bread making process with the right ingredients.
It's not just bread, all kinds of foods. Who was the first person to think "I'm going to boil this egg". How did people come up with all these foods and methods? By accident? Trial and error?
I'm hungry but I can't even make a sandwich without researching ten different things that don't have answers.