Nerdfighteria is a mainly online-based community subculture that originated on YouTube in 2007, when the VlogBrothers (John and Hank Green) rose to prominence in the YouTube community. As their popularity grew, so did coverage on Nerdfighteria, whose followers are individually known as Nerdfighters. The term was coined when John saw a copy of the arcade game Aero Fighters and misread the title as Nerd Fighters.