Which came first, Mario or YouTube?

Mario came first, by 24 years. Mario debuted as "Jumpman" in the arcade game Donkey Kong.

Side by side

Mario

Mario first appeared in Donkey Kong in 1981, credited as Jumpman, four years before Super Mario Bros. of 1985 made him a household name. He wears a cap because animating hair at that resolution was impossible, and dungarees because they made his arm movements legible against his body — the design is entirely a consequence of an 16×16 pixel sprite.

YouTube

The youtube.com domain was registered on Valentine's Day 2005, the first video — "Me at the zoo", 19 seconds of a co-founder at San Diego Zoo — was uploaded on 23 April, and the site opened publicly in the winter. Google bought it in November 2006 for $1.65 billion, about twenty months after the domain was registered. It is younger than Facebook by a year and older than Twitter by one.