Complex sentence: On a number of occasions, Steiner promoted full assimilation of the Jewish people into the nations in which they lived, a stance has come under criticism in recent years, though it should be noted that Steiner died before Hitler's rise to power.
Split into simpler sentences: On a number of occasions, Steiner promoted full assimilation of the Jewish people into the nations in which they lived. This stance has come under criticism in recent years, although it should be noted that Steiner died before Hitler's rise to power.