| 1924 |
First known gymnastics meet between Illinois high schools held (Chicago Public League meet). |
| 1952 |
First statewide invitational meet conducted by University of Illinois. |
| 1954 |
Long horse (vault) competition introduced. |
| 1956 |
All-around competition introduced. |
| 1958 |
IHSA takes over sponsorship of state meet. |
| 1969 |
Tumbling replaced by free exercise. |
| 1975 |
Free exercise replaced by floor exercise. |
| 1978 |
Trampoline competition discontinued. |
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