The note urges parents to think beyond gender stereotypes when encouraging their children to play. It reads:
"The urge to create is equally strong in all children. Boys and girls.
"It's imagination that counts. Not skill. you build whatever comes into your head, the way you want it. A bed or a truck. A dolls' house or a spaceship.
"A lot of boys like dolls' houses. They're more human than spaceships.
"A lot of girls prefer spaceships. they're more exciting than dolls' houses.
"The most important thing is to put the right material in their hands and let them reate whatever appeals to them."
A photo of the letter was shared on imgur on Saturday November 22, by a user known as fryd_ who found the note in a Lego set at at his partner's grandmother's house. It quickly went viral with people praising the message for being 'ahead of it's time'.
Fryd_ captioned his post '70s Lego had the right idea' and commented that:
"It seems like we've taken a step backwards. "
A few people called into question whether the letter was real, but today (November 24) Emma Owen, a spokesperson for Lego UK and Ireland confirmed that the letter was part of a pamphlet showing a variety of Lego doll house products from the 1970s.
"The text remains relevant to this day," Emma told The Independent.
"Our focus has always been, and remains to bring creative play experiences to all children in the world, based on the Lego brick and the Lego system – ultimately enabling children to build and create whatever they can imagine."
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