She left PEOPLE in 2022. Sesame Street has been on the air for 52 years, which for so many of us means that we have had the privilege of growing up with the Muppets who have become household names.

But today, the museum announces that the Jim Henson Legacy organization and the Henson family is donating 21 of Henson’s most cherished puppets from “The Muppet Show,” “Sesame Street ...