|Photo: Angela J. Cesere/AnnArbor.com|
|Thousands of partiers filled the University of Michigan Diag last year for the 39th Annual Hash Bash in Ann Arbor. The 40th celebration is at high noon on Saturday.|
On April 1, 1972, stoners gathered on the University of Michigan Diag in Ann Arbor for the first ever Hash Bash, a countercultural cannabis celebration now in its 40th year. The reason for the original Bash was Michigan’s new marijuana law wasn’t going to take effect until after the weekend, so for a brief time there was no cannabis law on the books.