The US psychologist and co-creator of "Sesame Street" Lloyd Morrisett has died.
The idea for the children's show was 93 years old, as the Sesame Workshop organization announced on Twitter.
"Lloyd leaves an immense and indelible legacy for generations of children around the world," the statement read Monday.
As the head of the production company for decades, he was fascinated by the power of technology and always considered how it could be used for education.
Sesame Workshop also shared a statement from Morrisett's business partner, television producer Joan Ganz Cooney: "Without Lloyd Morrisett, Sesame Street would not exist.
It was he who first came up with the idea of teaching preschool children basic skills like reading letters and learning numbers through television.
He was a trusted partner and loyal friend to me for over 50 years and we will miss him dearly.”
Morrisett was born in Oklahoma City in 1929.
In 1968, together with Ganz Cooney, he founded the non-profit organization Children's Television Workshop, which was later renamed the Sesame Workshop.
In 1969, the duo created "Sesame Street," the US original of "Sesame Street."
The series is considered the most famous children's show in the world.
Sesame Workshop is also developing other series and educational programs for children.