Henrik Ibsen was a major Norwegian playwright of the late 19th century.  It is considered that he introduced a new order of moral analysis that was placed against a realistic middle-class background and developed with an economy of action, penetrating dialogue, and rigorous thought. Ibsen was in the forefront of those early modern authors who one could refer to as the great disturbers; including Fyodor Dostoevsky, Friedrich Nietzsche, and William Blake.

Adams, Robert M. 'Henrik Ibsen' Encyclopedia Britannica, [online]