The first oven was most likely made with rocks and/or dry mud.
budder
Magic
Vienna, Austria
in 2900 BC in europe
Percy Spencer
America
the made the first toaster oven
the first written report of an oven was in 1490 in Alsace, France. it was made entirely of brick and tile.
This particular kind of oven was first made in the year 1947. This type of oven would come to be known as a microwave oven and would change the way cooked meals were mad and shortening the time for various foods.
Most likely because metal is not known to be a very flammable material and can withstand the kind of heat that an oven is potentially able to produce.
If you want to bake you need an oven. Since bread is the staff of life and the basis for most of the food of the world then an oven is very important to life on the face of the earth. The original ovens were made of clay/earthenware bricks.
first they pee and then they put some dog sh1t on it to taste very good.