 For example, the nation's great patriotic literature including John Barbour's "The Brus" (1375) and Blind Harry's "The Wallace" (before 1488) was written in Scots, not Gaelic.By the end of the 15th century, English/Scots speakers referred to Gaelic instead as 'Yrisch' or 'Erse', i.e.Irish and their own language as 'Scottis'.