Complex sentence: The Second Reformation was an evangelical campaign organised by fundamentalists in the Church of Ireland and Church of England in the 1820s; evangelical clergymen were known as "Biblicals" or "New Reformers".
Split into simpler sentences: The Second Reformation was an evangelical campaign of the 1820s,organised by fundamentalists in the Church of Ireland and Church of England. Evangelical clergymen were known as "Biblicals" or "New Reformers".