Mark Otto and Jacob Thornton developed Bootstrap at Twitter as a means of improving the consistency of tools used on the site and reducing maintenance. The software was formerly known as Twitter Blueprint and is sometimes referred to as Twitter Bootstrap.
The Mario brothers were first seen in 1983 in the arcade game Mario Bros. Mario was invented before Luigi and first showed up in the game Donkey Kong in 1981.
Prior to the NES version, Nintendo also made a Duck Hunt game based on Laser Clay Shooting System released in 1976. It was later a pack-in game, paired with Super Mario Bros.; the pack later also included World Class Track Meet.