All 32 of the Berkeley Unified School District’s bus drivers called in sick for work for two days in mid-September 1973— and won a set of concessions from the school board as a result.

As the caption above suggests, the bus drivers’ “sick-in” occurred in the context of larger protests against educational cutbacks by a coalition of education-related unions: the Berkeley Federation of Teachers (BFT), the Berkeley Education Association (BEA), the California State Employees Association (CSEA) and Local 1 (the bus drivers union).