In ancient times, no one paid much attention to the anniversary of important events, such as birthdays, cause humans had no way of keeping time. It was only when ancient peoples began taking notice of the moon's cycles that they began to pay attention to the changing seasons and the pattern that repeated itself over and over. Eventually, the first calendars were formulated to mark time changes and other special days. From this tracking system came the ability to celebrate birthdays and other significant anniversaries the same day each year. We have several birthday invitations categories including adult birthday invitations, over-the-hill birthday invitations, surprise birthday invitations, birthday party photo invitations, teen birthday invitations, milestone age birthday invitations, sweet 16 invitations and MORE. READ MORE ABOUT Adult Birthdays . . . .

Since people in ancient times had no way of keeping track and marking time there was little attention paid to the anniversary of a person's birth. Everyone realized that people grew older as time passed, but they didn't mark any special milestone for it. Only when scholars began taking notice of the moon's cycles, did they pay attention to the changing seasons and the pattern that repeated itself over and over so they began to mark and note time changes. Historians tell us that this was the start of birthday history. Eventually, the first calendars were formulated to mark time changes and other special days. From this tracking system came the ability to celebrate birthdays and other significant anniversaries the same day each year.