Lego celebrated a golden milestone Monday, 50 years after the original patent for the plastic interlocking toy blocks was filed.

Denmark's Ole Kirk Christiansen crafted the prototype in 1949 before rolling the final market-ready toy in 1958. The company estimates there are 62 Lego blocks for every person around the globe.

"When you give someone a Lego brick, the possibilities are endless," Soren Torp Laursen, president Lego Americas, said in a release.

"The classic brick remains the same. The only thing that varies is the creative breath that children bring to the play experience, and that's the real magic behind a timeless toy."

The bricks, made in factories in Denmark, the Czech Republic and Mexico, are now moulded in 2,400 different shapes and sold in over 130 countries.

Christiansen named his toy company in 1932, fusing together the Danish words leg and godt, which translates into "play well."