National Carnation Day is observed in the United States every January 29, commemorating the birthday of William McKinley, the 25th President, who was known for wearing a red carnation as a good luck charm. The day was first celebrated in 1903, established by the Carnation League of America, founded by Lewis G. Reynolds. It serves as a solemn remembrance of McKinley, who played a significant role in American history, including leading the country during the Spanish-American War. On this day, people are encouraged to wear a carnation to honor his memory, share knowledge about his contributions, give carnations to loved ones or strangers, and post images of carnations on social media using specific hashtags. The observance reflects both personal remembrance and a broader acknowledgment of McKinley's impact on the nation.