("Uilleann" redirects here. For the letter of the ogham, see Forfeda.) The uilleann pipes (/ˈɪlən/ or /ˈɪljən/; Irish: [ˈiːl̠ʲən̪ˠ]) are the characteristic national bagpipe of Ireland. Earlier known in English as "union pipes", their current name is a partial translation of the Irish-language term píobaí uilleann (literally, "pipes of the elbow"), from their method of inflation. There is no historical record of the name or use of the term 'uilleann pipes' before the twentieth century. It was an invention of Grattan Flood and the name stuck. People mistook the term 'union' to refer to the 1800 Act of Union; this is incorrect as Breandán Breathnach points out that a poem published in 1796 uses the term 'union'.