Media Platforms Design Team(Photo Credit: Reddit / fryd_)Score one, team LEGO! Redditor fryd_ discovered a 40-year-old note tucked away in a box of LEGOS encouraging children to let their imagination thrive, regardless of traditional gender roles. Girls could build rocketships and boys could build dollhouses, the note said, and what matters is giving them the materials to build whatever their heart desires with LEGOs. The pamphlet has been authenticated to Quartz by LEGO spokesperson Roar Rude Trangbæk. As io9 mentioned, it also fits in with the companies advertising of the time, which targetted the toy as something fun for children, regardless of gender. Things have changed for the company since then, and its egalitarian gender roles has waned as they relied increasingly on franchise tie-ins. But at the time, it was quite progressive — not just to advertise a unisex toy, but to encourage kids to simply let their imagination run wild, regardless of what they wanted to build.Via Quartz.John WenzWriterJohn Wenz is a Popular Mechanics writer and space obsessive based in Philadelphia. He tweets @johnwenz.