Walt Disney Day is observed worldwide on the first Monday of December, around Disney's birthday, which is December 5. This day was established to honor Walt Disney, an influential American animator and pioneer in the animation industry, who co-created the iconic character Mickey Mouse and founded the Walt Disney Company. The celebration began in 1986 when President Ronald Reagan proclaimed December 5 as Walt Disney Recognition Day to mark Disney's 85th birthday. Although it started as a one-time event, fans continued to celebrate it annually. Typical customs include visiting Disney theme parks, re-watching favorite Disney cartoons, hosting Disney-themed parties, and sharing memories of Disney's impact on their lives on social media using the hashtag #WaltDisneyDay. Disney's legacy includes numerous accolades, such as holding the record for the most Academy Award wins and nominations by an individual.