In Japan, the number 4 is considered to be an unlucky age and is known as yon-sai (四歳). This superstition dates back to ancient times when people believed that bad luck would come to anyone who reached the age of four. It is still observed today in many parts of Japanese culture, such as avoiding scheduling important events on days with a 4 or 44 in them, not taking children out on days when they turn four years old, avoiding traveling during their child’s fourth year of life, and not giving presents or money on days with a 4 or 44. There are also various cultural associations related to death such as avoiding sitting at tables with four legs which symbolizes death. Additionally, there are celebrations held by some people which aim at welcoming this new stage for children rather than fearing it due its association with bad luck and misfortune.