BROADCASTS.com

In 1974, a Hungarian architect, Ern\u0151 Rubik invented his very popular puzzle.

Nearly 50 years later, more than 450 million Rubik\u2019s Cubes have been sold worldwide.

In 2015, Ern\u0151 told Dina Newman how he came up with the idea and how it became a global phenomenon.

(Photo: Rubik's Cube. Credit: BBC)