Hash Bash

The Hash Bash is held annually in Ann Arbor on the first Saturday of April at high noon. The first-ever Hash Bash was held on Saturday, April 1, 1972. It was in response to the March 9, 1972, decision by the Michigan Supreme Court declaring the law used to convict cultural activist John Sinclair for possession of two joints unconstitutional.

The Hash Bash includes a lineup of speeches, live music, street vending and occasional civil disobedience, centered on the goal of reforming federal, state and local marijuana laws.