What is finnians?

As an AI language model, I cannot provide information about "Finnians" as it appears to be an invalid or misspelled term. However, if you meant "Finnians" as a reference to "Saint Finnian of Clonard," he was an Irish monk who lived in the 5th century. He was one of the famous Irish Twelve Apostles and was a renowned teacher, whose students included Saint Columba and Saint Ciaran of Clonmacnoise. Finnian established the monastery in Clonard, County Meath, which became known as a center for Christian scholarship and learning. He is also known for his leadership in establishing the Celtic monastic tradition in Ireland.