We at Catalyst would like to thank the more than 200 people who joined the Community Renewal Society at the Chicago Cultural Center Thursday evening in celebrating our 20th anniversary. We now would like to share with all our readers a slideshow on the history of Chicago school reform and of Catalyst. It begins in 1979 with the financial collapse of the school system. Dozens of you will see yourselves or your organization. (Warning: It runs for 16 minutes.)