An anniversary is a date that marks the completion of a year since a significant event occurred. Commonly celebrated anniversaries include weddings, where couples commemorate the day they were married, and historical events, such as national independence days. These occasions often involve special traditions, gifts, or gatherings to honor the memory of the event. People celebrate anniversaries in various ways, depending on the significance of the occasion. For example, a couple might enjoy a romantic dinner or exchange gifts on their wedding anniversary, while a community might hold parades or ceremonies to celebrate a national anniversary. Overall, anniversaries serve as reminders of important milestones in life.