The 'Happy Birthday Colin' meme originated from a heartwarming viral story in 2014, when a mother created a Facebook page for her son Colin, who believed he had no friends to celebrate his eleventh birthday with. The page quickly garnered millions of followers, turning Colin into a global symbol of community and kindness. Today, the meme is used both to commemorate that specific internet milestone and as a versatile template to wish anyone named Colin a special day. It represents the power of the internet to bring strangers together for a positive cause, making it a staple for celebratory and wholesome social media posts.