I've seen bullfights, rodeos, concerts and tennis matches along with baseball and football games in the Dome.
(You see, while a student at Strake Jesuit, I was a popcorn vendor for Harry Martin Catering in the Sixties.)
I finally found it at this site, you may enjoy this link a lot. http://www.astrosdaily.com/1965/1965.html
October 3:
St. Louis (79-81) at Houston (65-96)
The Astrodome
In all three seasons as the Colt .45s, they had ended the year with 96 losses. The Astros hope to avoid their 97th loss but Bob Gibson has other ideas. The Cardinal righthander notches his 20th win in a 5-2 decision. 26,893 attend to set a new attendance record of 2,151,470 for the year, second behind Los Angeles, after finishing last with 725,773 the year before. As a weekend promotion, fans watch demonstrations of a single-occupant jet pack that straps onto the back and lets the wearer blast off into the air and coast back to the ground.