World Religion DayWorld Religion Day was initiated in 1950 by the National Spiritual Assembly of the Baha’is of the United States. The Assembly’s purpose was to call attention to the harmony of spiritual principles and the oneness of the world’s religions and to emphasize that religion is the motivating force for world unity.

World Religion DayWorld Religion Day was initiated in 1950 by the National Spiritual Assembly of the Baha’is of the United States. The Assembly’s purpose was to call attention to the harmony of spiritual principles and the oneness of the world’s religions and to emphasize that religion is the motivating force for world unity.
http://www.bahai.us/2012/01/13/world-religion-day-celebrates-unity-among-diversity-of-faiths/