Notice that the first “Juneteenth” was celebrated June 19, 1865, and this year will be the 156 year anniversary. That is why today, June 15, or 15/6, the Senate has passed this bill, making it an official federal holiday. And never forget the relationship with 33 and 156.
–Thirty-Three = 156
–Federal = 33

https://www.cnn.com/2021/06/15/politics/juneteenth-federal-holiday-senate-vote/index.html