The main event of the town's calendar in June is the Keswick Beer Festival, a two-day event that attracts more than 5,000 participants each year.[1] July is marked by the opening of the annual Keswick Convention, an international gathering of Evangelical Christians, described in 1925 as "the last stronghold of British Puritanism",[141] promoting biblical teaching and pious lifestyles.[142] Among those associated with the Convention have been Frank Buchman and Billy Graham.[143] The event has grown from a single week to three weeks, straddling the latter part of July and early August.[140]