Complex sentence: In 1894 Kheiralla moved on to Chicago following the interest fostered by the World's Columbian Exposition's World Parliament of Religions where he taught "Truth Seeker" classes.
Split into simpler sentences: In 1894 Kheiralla moved on to Chicago following the interest fostered by the World's Columbian Exposition's World Parliament of Religions. There in Chicago he taught "Truth Seeker" classes.