query: When was the Japanese Super Sentai series GoGo Sentai Boukenger first introduced?
passage: GoGo Sentai Boukenger
GoGo Sentai Boukenger(轟轟戦隊ボウケンジャー,Gōgō Sentai Bōkenjā, [Note 1][Note 2]) is the 30th series in Toei's Super Sentai series, a metaseries of Japanese tokusatsu programming. It is the first installment to be broadcast in 16:9 aspect ratio. It premiered on February 19, 2006 at 7:30a.m. on TV Asahi. Its footage was used in the American series, Power Rangers Operation Overdrive, while the original footage was dubbed into Korean for the South Korean series, Power Rangers Treasure Force.
passage: Superhero
In 1971, "Kamen Rider" launched the "Henshin Boom" on Japanese television in the early 1970s, greatly impacting the tokusatsu superhero genre in Japan. In 1972, the "Science Ninja Team Gatchaman" anime debuted, which built upon the superhero team idea of the live-action "Phantom Agents" as well as introducing different colors for team members and special vehicles to support them, said vehicles could also combine into a larger one. Another important event was the debut of "Mazinger Z" by Go Nagai, creating the Super Robot genre. Go Nagai also wrote the manga "Cutey Honey" in 1973; although the Magical Girl genre already existed, Nagai's manga introduced Transformation sequences that would become a staple of Magical Girl media.