Legendary science fiction author Ray Bradbury, who wrote titles such as Fahrenheit 451 and The Martian Chronicles, died yesterday at the age of 91 after a long illness, according to CNN.

While his animation-related credentials are few, filmmakers and artists from around the world have taken to Twitter to credit Bradbury as a primary inspiration. Bradbury worked with the 1964 New York World’s Fair, famous for being a testing ground for Walt Disney. This got him involved in the EPCOT project. While the park didn’t come into being until 1982, Bradbury continued to work with the company, spearheading the signature attraction, Spaceship Earth, according to D23. He was the screenwriter (based on his own original story) for Disney’s live action 1983 film Something Wicked This Way Comes. Bradbury is credited for working on the concepts of 1989’s Little Nemo: Adventures in Slumberland. And in 1993, he won an Emmy for writing the Hanna-Barbera’s adaptation of The Halloween Tree, in which he also voiced the narrator.

In 2008, members of Animated Views team attended a Comic-con panel held with Bradbury. You can read some of thier thoughts on getting to hear from the renowned writer in the original write-up.