Established improv theater company, Unexpected Productions, began leasing the building 1991. Soon after, a patron waiting in the ticket line to see Theatresports, a popular competition improv comedy show (still running today), stuck a piece of chewed gum to the wall, topping it with a penny. Others soon followed suit. By the end of 1995, the wall was covered with the coin-topped chewed gum offering. One day, someone in need of money took all the coins, but left the gum. The idea stuck. The wall has been cleaned about 7 times since the 90s. https://unexpectedproductions.org/gumwall/
That I'm not sure. I do know it's been there awhile. You should check it out. It's pretty cool and you can put your fun on the wall.
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