Mario was first introduced in 1985.
This was in Super Mario Bros for the Nes
The first game Mario was technically in was Donkey Kong in 1982. Mario's name at the time was Jumpman.

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Besides the Super Mario Bros series, Mario got another game series called Mario Kart.
This series began on the SNES in 1992 as Super Mario Kart.
Mario also was among many nintendo consoles like the Nintendo 64, Gamecube Nintendo, Wii and Wii U, and the Nintendo Switch.