sentences:  In the 7th century Adomnán mentions "Rechru" and "Rechrea insula", which may also have been early names for Rathlin.The 11th-century Irish version of the Historia Brittonum states that the Fir Bolg "took possession of Man and of other islands besides - Arran, Islay and 'Racha'" – another possible early variant.Rathlin was the site of the first Viking raid on Ireland, according to the Annals of Ulster.