Complex sentence: At a by-election in 1870 Corrigan was elected a Liberal Member of Parliament for Dublin, in parliament he actively campaigned for reforms to education in Ireland and the early release of Fenian prisoners.
Split into simpler sentences: At a by-election in 1870 Corrigan was elected a Liberal Member of Parliament for Dublin. In parliament he actively campaigned for reforms to education in Ireland and the early release of Fenian prisoners.