Herbert W. Armstrong founded the Worldwide Church of God in the late 1930s, as well as Ambassador College in 1946, and was an early pioneer of radio and tele-evangelism, originally taking to the airwaves in the 1930s from Eugene, Oregon. Armstrong preached an eclectic set of theological doctrines and teachings that he claimed came directly from the Bible. These theological doctrines and teachings have been referred to as Armstrongism. His teachings included the interpretation of biblical prophecy in light of British Israelism, and required observance of parts of the covenant Law including seventh-day Sabbath, dietary prohibitions, and the covenant law "Holy Days". Armstrong proclaimed that behind world events during his lifespan loomed various Biblical prophecies, and that he was called by God as an 'Apostle' and end-time 'Elijah' to proclaim the Gospel of God's Kingdom to the World before the return of Jesus Christ. He also founded the Ambassador International Cultural Foundation, which promoted the arts, humanities, and humanitarian projects. Through his role with the foundation, Armstrong and his advisers met with heads of governments in various nations, for which he described himself as an "ambassador without portfolio for world peace."