The charter of 1276 had authorised a weekly market to be held on Wednesdays; that of 1314 a weekly market on Thursdays (probably superseding the Wednesday market); and that of "c".1343 a weekly market on Saturdays. The earliest mention of markets actually being held on Saturday dates from 1595, and market day remained Saturday until the middle of the 19th century. In 1861, however, the cornmarket was moved to Thursday, and was held on that day until corn-trading ended in 1907. A minority of traders, mistrusting the change, continued to hold a rival Saturday cornmarket until 1892. The general provisions market continued to be held officially on Saturdays until 1874, when the Butter Market building closed; and afterwards as an unofficial Saturday street market.