In 479 B.C.（the 16th year of Aigong，Duke of the state of Lu），Confucius died on the 11th of the second month in the Chinese lunar year，after being sick in bed for 7 days.He was buried in the old city of Lu（near the Si River north of the present Qufu）.Most of his disciples guarded his tomb for three years and then left.Zi Gong guarded his tomb in a hut for six years.His disciples and the later generations turned Confucius' former residence into a memorial hall，in which the utensils，such as clothes，hats，the chime stone，the carriage and books once used by him were preserved.Since then sacrificial services were offered every year.