Kaputusan nyanggra Trisuci puniki kasobayahang ring Paruman Persaudaraan Buddhis Sajebag Jagat (World Fellowship of Buddhists - WFB) sané pinih pertama ring Sri Lanka ri tatkala warsa 1950.
The decision to officially celebrate Vesak as the Buddha's birthday was formalised at the first conference of the World Fellowship of Buddhists held in Sri Lanka in 1950.