 During the Iron Age , a Celtic language and culture emerged in Ireland . How and when the island of Ireland became Celtic has been debated for close to a century , with the migrations of the Celts being one of the more enduring themes of archaeological and linguistic studies . Today , there is more than one school of thought on how this occurred in Ireland . 
 During the Iron Age , a Celtic language and culture emerged in Ireland . How and when the island of Ireland became Celtic <a href='been_done' title='1'><mark>has</mark></a> been debated for close to a century , with the migrations of the Celts being one of the more enduring themes of archaeological and linguistic studies . Today , <a href='dey_it' title='2'><mark>there</mark></a> is more than one school of thought on how this occurred in Ireland . 
During da Iron Age , a Celtic language and culture emerged in Ireland . How and when tdaisland of Ireland became Celtic done been debated fir close to a century , w/ thdaigrations of the Celts being one of the more enduring themes of archaeological and linguistic studies . Today , it is more than one school of thought on how this occurred in Ireland .