It’s hard to find “events thru history” that happened on Pentecost, because many happened before things were “written down” and also, because History will tell you what happened on a “DATE,” but Pentecost isn’t the same date every year – but 50 days from Passover, the dates of which we know change from year to year.
However, some interesting things we do know:
-The Feast of Pentecost originated in the Pentateuch as an offering of firstfruits, decreed for Israel on Mount Sinai.
-the anniversary feast of the giving of the Law or, actually, the establishment of the covenant at Sinai. It was also the seasonal planting and harvesting, called (Shavaout – Feast of Harvest or Feast of Weeks (beginning of early Wheat Harvest), which came after the Barley Harvest.
But, we can go back even earlier and then shoot thru time to the beginning of the Church we celebrate today.
What we have is:
⁃ The Tower of Babel REVERSED-dates lost in history and argument regarding actual “destruction,” but what we do know that has to do with Pentecost: The tower of Babel was all about a satanically inspired leader, Nimrod, attempting to ascend to the heavens and be as God, and in the process bringing judgement upon the people that scattered them across the earth by confusing their languages – they couldn’t talk to each other.
The Reversal of Babel
About 3,000 years later, Jesus Christ, the Son of God, ascended to Heaven and 10 days later, on the day of Pentecost, the Holy Spirit came to Earth to inhabit a temple not build with bricks but with living stones. A temple not in Babel on top of a Ziggurat, but in Jerusalem in the upper room. This temple on earth is the Church!
One Pilgrim's Journey 