Christ’s ascension the disciples and 120 people received the baptism of the Holy Spirit on the day of , a Jewish feast held fifty days after Passover.

Pentecost

Explanation: Pentecost comes from a Jewish harvest festival called Shavuot. Pentecost is the day that the Holy Spirit descended upon the followers of Jesus. It refers to the festival celebrated on the fiftieth day after Passover, which is also known as the "Feast of Weeks" and the "Feast of 50 days" in rabbinic tradition.

this question your asking is true hope this and you get a 100 percent : )