Sesame Street Day is observed worldwide every November 10, celebrating the iconic American educational children's television show that premiered on this date in 1969. The show was created by Joan Ganz Cooney and Lloyd Morrisett, who aimed to use television as a tool for educating young children. Sesame Street has become a cultural phenomenon, known for its unique blend of live action, puppetry, and animation, featuring beloved characters like Big Bird and Cookie Monster. The inaugural Sesame Street Day was celebrated in 2009, marking the show's 40th anniversary with a proclamation from New York City Mayor Michael Bloomberg, which included temporarily renaming a corner of Broadway to 123 Sesame Street. People celebrate by rewatching episodes, enjoying movies, listening to songs from the show, and sharing their experiences on social media with the hashtag #SesameStreetDay.