For the first time in nearly half a century, teachers in Columbus, Ohio, have voted to go on strike.

The Columbus Education Association announced Sunday night that more than 94% of it members had voted to reject the Columbus City school board’s last final offer and go on strike for the first time since 1975….

The nearly 4,500-member union — which represents teachers, librarians, nurses, counselors, psychologists and other education professionals — met for more than three hours at the convention center to vote.

A spokesperson for the CEA said:

“…The school board has tried desperately to make this strike about teacher salary, teacher professional development, and teacher leaves,” she said. “Let me be clear. This strike is about our students who deserve a commitment to modern schools with heating and air conditioning, smaller class sizes, and a well-rounded curriculum that includes art, music and (physical education).”