The right for those in wheelchairs to eat at restaurants and vote at the polls, the ability for someone who is deaf to order pizza by phone, and the sea change that established those with disabilities as a class of people.

All those came about because of the Americans with Disabilities Act, said Dot Nary, who uses a wheelchair.

In the 20 years since it was signed into law, the ADA has helped the country break down both physical and societal barriers.

“Even though it didn’t accomplish all that I hoped and in some ways was weakened along the way, overall it is a watershed moment in terms of people with disabilities,” Nary said.

To celebrate the 20th Anniversary of the law and change that came with it, the Lawrence disability community is hosting a celebration Monday night at South Park.

The event, which will be held from 6 p.m. to 8 p.m., will include speeches, live music, refreshments and drawings for door prizes. If there is rain, the celebration will be held at St. John Catholic Church, 1229 Vermont St.