ISKCON (The International Society for Krishna Counsciousness) was founded in New York in 1966 by His Divine Grace A.C. Bhaktivedanta Swami Prabhupada. It rapidly expanded to become a worldwide confederation of several hundred temples and asramas, with affiliated farm communities and gurukula schools. The Centre for Vedic Studies just belong to temples.
ISKCON is based on the timeless teachings of Bhagavad-gita and Srimad-Bhagavatam as received in disciplic succession from Lord Caitanya Mahaprabhu. Lord Caitanya appeared five hundert years ago in Mayapur Dhama and thought the science of Krishna-bhakti. He popularized the chanting of
Hare Krishna Hare Krishna Krishna Krishna Hare Hare
Hare Rama Hare Rama Rama Rama Hare Hare,