Haile Selassie visited Jamaica on April 21, 1966. Somewhere between one and two hundred thousand Rastafari from all over Jamaica descended on Kingston airport having heard that the man whom they considered to be God was coming to visit them. They waited at the airport smoking a great amount of cannabis and playing drums. When Haile Selassie arrived at the airport he delayed disembarking from the aeroplane for an hour until Mortimer Planno, a well-known Rasta, personally welcomed him. From then on, the visit was a success. Rita Marley, Bob Marley's wife, converted to the Rastafari faith after seeing Haile Selassie; she has stated that she saw stigmata appear on his person, and was instantly convinced of his divinity.
The great significance of this event in the development of the Rastafari movement should not be underestimated. Having been outcasts in society, they gained a temporary respectability for the first time. By making Rasta more acceptable, it opened the way for the commercialisation of reggae, leading in turn to the further global spread of Rastafari.
Because of Haile Selassie's visit, April 21 is celebrated as Grounation Day. It was during this visit that Selassie I famously told the Rastafari community leaders that they should not emigrate to Ethiopia until they had first liberated the people of Jamaica. This dictum came to be known as "liberation before repatriation."