Sunday marks 30 years since the passage of the landmark Americans with Disabilities Act.

Modeled after the Civil Rights Act of 1964, the ADA was intended to give people with disabilities equal opportunity, full participation, independent living and economic self-sufficiency. The fourth goal — economic self-sufficiency, which is largely reliant on private sector employment — has barely budged, said former Iowa Sen. Tom Harkin, who authored the bill.

“That’s the one where we haven’t moved the needle a bit. The unemployment rate for adults with disabilities today, well, it’s a little bit better, but basically, it’s about the same as it was 30 years ago,” Harkin said in an interview as part of a Business Record series on advancing the employment of professionals with disabilities.

The Harkin Institute for Public Policy & Citizen Engagement is joining the Dole Institute of Politics, the Edward M. Kennedy Institute for the U.S. Senate and the George Bush Presidential Library & Museum to host a virtual rally commemorating the 30th anniversary of the Americans with Disabilities Act on Sunday. The virtual rally, being held on Twitter and Instagram, will allow for both accessibility and social distancing. Disability rights activists, including former Sen. Tom Harkin, former Sen. Bob Dole, Judy Heumann and Claudia Gordon will speak at the event. Register for the rally and follow the Harkin Institute on Twitter and Instagram.

Here are a few good reads to learn more about the landmark legislation ahead of Sunday:

• ‘Nothing about us without us’: 16 moments in the fight for disability rights (New York Times)
• Workers with disabilities are disproportionately experiencing job loss during the coronavirus pandemic (Huffington Post)
• After 30 years of ADA, there is still work to be done (Des Moines Register)

Look for the sixth and last edition of the Business Record’s special newsletter series leading up to the ADA anniversary in your inbox Sunday morning.