The phrase a baker’s dozen is believed to come from the Middle Ages, when it was the practice of bakers adding a thirteenth loaf of bread to their batch of twelve to ensure they could not be charged with selling underweight bread.
The phrase a baker’s dozen is believed to come from the Middle Ages, when it was the practice of bakers adding a thirteenth loaf of bread to their batch of twelve to ensure they could not be charged with selling underweight bread.