Complex sentence: As far as is known, there was no distinctively Manx written literature before the Reformation, and by this time any presumed literary link with Ireland and Scotland, such as through Irish-trained priests, had been lost.
Split into simpler sentences: As far as is known, there was no distinctively Manx written literature before the Reformation. By this time, any presumed literary link with Ireland and Scotland, such as through Irish-trained priests, had been lost.