When was Princess Peach first introduced

in the first Mario game wich was Donkey Kong back then when Mario was called "jump man" lol
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Actually, it was in 1985 Super Mario Bros. Yes, you are 100% correct that Mario was called Jumpman back in 1981, but your 0% correct of that girl being Princess Peach. The girl Donkey Kong kidnapped was a regular girl named Pauline (she has brown hair, and is only shown in remakes of the Donkey Kong game.)