Europeans in the Middle Ages believed that birthdays were the day when the soul was most vulnerable to invasion by demons, so on birthdays, relatives and friends would gather around to give blessings and send cakes to bring good luck and expel demons.

In ancient times, birthday cakes would only appear on the birthdays of kings, higher-ranking nobles and other important figures. Ordinary people, especially children, never celebrated birthdays with cakes.

Some historians believe that the custom of the birthday person wearing a birthday "laurel crown" sparked these early birthday cake celebrations.

Later on, cakes became a must-have for birthday celebrations all over the world, whether young or old, rich or poor. Although birthday cake customs are similar in some countries today, everyone celebrates their birthdays with cakes in different ways. People from all over the world have their own rituals when using cakes on their birthdays based on their religious beliefs and ancient cultural traditions. In our country, "noodles" are also used to celebrate birthdays, which means "longevity"