| 1915 - November 1 Prairie Playhouse founded by Jess Crafton |
| 1958 - Prairie Players incorporated as a Not-for-Profit Organization. |
| 1968 - PPCT purchases Losey Street church for a performance facility. |
| 1978 - PPCT starts Dinner Theater program. |
| 1979 - PPCT starts a Children's Theater program. |
| 1980 - Mimicus - a mime and improvisation group starts. |
| 1983 - Kerasotes contacts PPCT to accept the Orpheum as a gift |
| 1983 - PPCT starts to raise funds to save Orpheum from demolition. |
| 1984 - T.O.T.E - Take Out Theater Entertainmnet begins. |
| 1984 - PPCT transfers funds to Orpheum Project for feasibility study. |
| 1988 - PPCT assumes Orpheum management. |
| 1988 - 2001 - PPCT produces about 65 shows for the community. |
| 1994 - PPCT produces CSPAN Lincoln/Douglas Debates for Galesburg. |
| 1999 - Camp Orpheum, Summer camp for K-12 students begins. |
| 2001 - PPCT passes Orpheum management to Civic Center Authority. |
| 2007 - PPCT buys 160 S. Seminary Street for a performance facility. |