How many different types of celebration are there?

There are countless types of celebrations, varying widely across cultures, religions, and personal milestones. Common categories include religious celebrations (like Christmas and Diwali), national holidays (such as Independence Day), personal milestones (like birthdays and weddings), and seasonal festivals (like harvest festivals). Each type can have numerous local variations, reflecting the diversity of human experiences and traditions. Ultimately, the number is vast and continually evolving as new events and customs emerge.