[Ans] Who became one of the richest men in Hungary thanks to a toy he developed?

Step 1 : Introduction to the question "Who became one of the richest men in Hungary thanks to a toy he developed?"

Erno Rubik is a Hungarian inventor and a professor of architecture. He is best known for the invention of Rubik's Cube, a 3-D combination puzzle that he invented in 1974. The Rubik's Cube was an instant success worldwide, and a staple of the 1980's popular culture. To date, over 350 million Rubik's Cubes have been sold, making it the best selling toy of all time. It is estimated that one in seven people in the world have touched a Rubik’s Cube. Thanks to the cube he invented, Professor Rubik has become one of the richest and most celebrated men in Hungary.

[Answer] Who became one of the richest men in Hungary thanks to a toy he developed?

Step 1 : Introduction to the question "Who became one of the richest men in Hungary thanks to a toy he developed?"

...Erno Rubik is a Hungarian inventor and a professor of architecture. He is best known for the invention of Rubik's Cube, a 3-D combination puzzle that he invented in 1974. The Rubik's Cube was an instant success worldwide, and a staple of the 1980's popular culture. To date, over 350 million Rubik's Cubes have been sold, making it the best selling toy of all time. It is estimated that one in seven people in the world have touched a Rubik’s Cube. Thanks to the cube he invented, Professor Rubik has become one of the richest and most celebrated men in Hungary.