sentences:  The line of demarcation, which cut the island into two symbolic halves (known as "Leth Cuinn", or "Conn's Half", and "Leth Moga", or "Mug's Half") ran along the Esker Riada from High Street in Dublin to Galway on the west coast.According to another work which draws on early sources, the "Annals of the Four Masters", Fiachu Sraibtine, the king of Tara, quelled the rebellious inhabitants of Leinster in a battle fought at Dublin in 291 AD; the "Annals of Dublin" also record that Alphin mac Eochaid, King of Dublin, was converted to Christianity by Saint Patrick in 448 AD.But these entries were only added to the "Annals"', or the sources from which they were compiled, many centuries after the events they purport to record, and no reliance can be placed on them.