I love taking my wife to the bakery.  That's the place where a baker works.
When did humans discover the art of baking?
Boy grains have been around as a staple food for millenia.  Baking those grains is really rather old.
Which country did  baking originate from?
Well we know that there were enclosed ovens used by the greeks in the fifth and sixth century BC.
Give me a dummy's definition for bakery
Bakers will make bread using an oven, or any heat source to bake bread.
Ok what does one need in order to bake
You don't need much in order to bake bread.  All you need is dough of flour and water, plus a heat source of course.