How long after the ascension was Pentecost?

It was 50 days, because Jesus was crucified on the Passover and Pentecost is 50 days after that. This is important because the Jewish feast of Pentecost included the offering of two loaves of unleavened bread representing the first fruits of the harvest (see Lev. 23:17-20 , Deut. 16:9-10), Jesus is the First Fruit of the Harvest, and Pentecost in the Christian Church is also the anniversary of the coming of the Holy Spirit (see Acts 2).