In Northern Ireland, the Eleventh Night or 11th Night refers to the night before the Twelfth of July, a yearly Ulster Protestant celebration. On this night, large towering bonfires are lit in many Protestant/loyalist neighbourhoods in Northern Ireland and are often accompanied by street parties.[1] The bonfires are mostly made up of wooden pallets and tyres, with some reaching over 100 ft tall.[2] The event has been condemned for displays of sectarian or ethnic hatred, anti-social behaviour, and for the damage and pollution caused by the fires. The flag of Ireland, Irish nationalist/republican symbols, Catholic symbols, and effigies, are burnt on many bonfires. There have been attempts to make the event more family-friendly and environmentally-friendly. It is also known as "bonfire night", in common with other events in which bonfires are lit.