. "2970s"@en . "The 2970s was the eighth decade of the thirtieth century. The Legion of Super-Heroes is founded during this decade. They time travel to the 1950s to recruit Superboy, offering him membership on their team, and the Boy of Steel does accept the offer, joining the team for a period of time during his youth, while also still heading back to the 20th century from time to time."@en . "The 2970s was the eighth decade of the thirtieth century. The Legion of Super-Heroes is founded during this decade. They time travel to the 1950s to recruit Superboy, offering him membership on their team, and the Boy of Steel does accept the offer, joining the team for a period of time during his youth, while also still heading back to the 20th century from time to time."@en .