What did the first vending machine dispense?

I wonder when choco bars were put in the machines? or maybe drinks? I wonder what the gum tasted like back then? Did you know that chewing gum is made from rubber? I saw that on 'how its made' on the discovery channell... sorry i am just going on and on...can you tell i am a writer? lol...i ask a ton of questions... where did you get this info? I am curious, not only cause i am a writer, but cause i am a history freak :-)

yeah it is..its my first time to read that one..the first vending machine..where did you research it?

That's very suprising. I never would have thought that chewing gum was that popular back then.