and demonstrations which have been credited with improving the atmosphere at Celtic Park. In November 2012, the Green Brigade organised a full stadium pre-match card display against Barcelona to celebrate Celtic's 125th anniversary. The display featured a Celtic cross, green and white hoops and 125 Celtic in written form, with supporters earning the praise of club chairman Peter Lawwell. They have however been criticised for some of their more controversial banners, such as the poppy protest banner in 2010. References Celtic F.C. Association football supporters Scottish society Catholic Church in Scotland Irish diaspora in Scotland