800 Year Old Law Ends

Last week a 600g loaf of bread went on sale in England. This was unusual, as previously a law had decreed that all loaves sold in England had to be in increments of a certain weight: after a conversion from pounds and ounces to grams and kilograms, the weight was 400g. The reason this is being reported on a history site, rather than current affairs, is that the law in question originated in 1266, when the Assize of Bread and Ale set certain sizes. The reason for the change was a harmonisation with European continental practices.