Centuries are special because they mark a major milestone in history. Every year, when we turn the calendar over to a new century, it is a reminder of the vast and long-reaching journey that humanity has taken throughout the ages. Centuries mark significant changes in the way we think, live, and work. They are a way to look back at how much humanity has advanced and how much farther we still have to go. Centuries have been marked in many ways throughout the centuries. Some societies have held festivals and erected monuments to mark the changing of the century, while others have celebrated with unique rituals and special meals. Each culture's celebration of the passing of a century speaks to their unique history and culture. It also serves as a reminder of the common heritage we all share. The coming of a new century is always a chance to reflect on the past and think about the future. As we cross into a new century, we can look back at the mistakes and successes that have come before us, and use that experience to make informed decisions about our future. It is a time to embrace and celebrate the progress we have made, and also to contemplate the challenges and opportunities we have yet to explore. With each new century we have the chance to create a better world for ourselves, our children, and generations to come.