International Yoga Day: When it was first celebrated, how it was born and the two Guinness world records

International Yoga Day, first celebrated on June 21, 2015, was established by the United Nations following a proposal by India's Prime Minister Narendra Modi. The inaugural event set two Guinness World Records: one for the largest yoga session with 35,985 participants and another for the most nationalities, 84, participating in a single yoga event.