According to Irishlanguage.net (see Link) under the headings:
History of the Irish Language
Stages of the Irish language
It was developed before the 4th century
Edward O'Reilly has written: 'An Irish-English dictionary' -- subject(s): Dictionaries, Irish language, English 'An Irish-English dictionary' -- subject(s): Accessible book, Dictionaries, English, English language, Grammar, Irish, Irish language 'Sanas Gaoidhilge-Sagsbhearla' -- subject(s): Dictionaries, English, English language, Grammar, Irish, Irish language
Daniel A. Collier has written: 'Irish without worry for everyone' -- subject(s): Grammar, Irish language 'Irish without worry' -- subject(s): Grammar, Irish language
the white language and american
Conor O'Begly has written: 'The English Irish Dictionary. =' -- subject(s): Dictionaries, Early works to 1800, English, English language, Grammar, Irish, Irish language
The Irish language version of Luke is Lúcás.
Nancy Stenson has written: 'Studies in Irish syntax' -- subject(s): Irish language, Syntax
Ulick Joseph Bourke has written: 'Easy lessons, or, Self-instruction in Irish' -- subject(s): Irish language 'Easy lessons' -- subject(s): Irish language, Study and teaching, Grammar, Textbooks, Texts 'The college Irish grammar' -- subject(s): Irish language, Grammar, Study and teaching
Iarfhlaith Watson has written: 'Broadcasting in Irish' -- subject(s): Irish National characteristics, Irish language, Public broadcasting, Revival
Hilary Tovey has written: 'Why Irish ?' -- subject(s): Anthropological linguistics, Ethnic identity, Irish, Irish language, Social aspects, Social aspects of Irish language 'A sociology of Ireland' -- subject(s): Social conditions, Sociology
Dermot Chenevix Trench has written: 'What is the use of reviving Irish?' -- subject(s): Irish language
Norma Borthwick has written: 'Ceachta beaga gaedhilge' -- subject(s): Irish language, Readers 'Ceachta beaga Gaedhilge' -- subject(s): Irish language, Readers
David Greene has written: 'The Irish language' -- subject(s): Civilization, Irish language 'Irish bardic poetry' -- subject(s): Bards and bardism, Irish poetry, Poetry, Translations into English