Barter means exchange since there was no currency back then so in order for a baker to produce bread again he will need wheat again from the farmer so i would say the answer is trade bread for wheat . Hope this helps
The first text to be printed on the printing press during the Renaissance was the Hebrew Bible, the Book of Isiah. Yes, that is true.
The main power given to the war industries board after its creation in 1917 was swords and many other weapons.