"Pentecost (Ancient Greek: \u03A0\u03B5\u03BD\u03C4\u03B7\u03BA\u03BF\u03C3\u03C4\u03AE [\u1F21\u03BC\u03AD\u03C1\u03B1], Pent\u0113kost\u0113 [h\u0113mera], \"the fiftieth [day]\") is the Greek name for Shavuot, the Feast of Weeks, a prominent feast in the calendar of ancient Israel celebrating the giving of the Law to Moses at Sinai (still celebrated in Judaism as Shavuot). Pentecost is celebrated fifty days after Easter Sunday, inclusively (i.e. 49 days with the first day counted, seven weeks), hence its name."@en .