Group 1 - KFC International Holdings LLC applied for the trademark "Calm Thursday" on May 2025, classified under convenience food [1] - The application was filed on April 17, 2025, and is currently awaiting substantive examination [1] - The "Calm Thursday" trademark application is seen as a defensive strategy to prevent imitation of the existing "Crazy Thursday" marketing campaign [3] Group 2 - The "Crazy Thursday" campaign has been a fixed marketing activity for KFC, offering special discounts every Thursday since at least August 2018 [2] - The campaign gained significant popularity after a pivotal moment in May 2021, when a viral post introduced the "Crazy Thursday" phrase, leading to the development of "Crazy Thursday literature" [2] - In 2022, KFC successfully registered the "Crazy Thursday" trademark in the restaurant and accommodation category, but faced challenges in other categories due to third-party registrations [3]