On May 15th, 2016 Catholic Church Celebrated Pentecost.
The Catechism of the Catholic Church speaks of Pentecost as being:
“The fiftieth day at the end of the seven weeks following Passover (Easter in the Christian dispensation). At the first Pentecost after the Resurrection and Ascension of Jesus, the Holy Spirit was manifested, given and communicated as a Divine Person to the Church, fulfilling the Paschal Mystery of Christ according to His promise” (726, 731; cf. 1287; also: Cf. Catechism, Glossary, p. 893).
Pentecost is the outpouring of the Holy Spirit in fulfillment of Jesus’ promise (CCC, 731; Acts of the Apostles 2:33-36).