According to Coptic Church tradition, the Virgin Mary died on the 21st Tubah. This date henceforth became a feast in honor of the Virgin every 21st of a Coptic month.
The Assumption took place on the 16th of Misra. Since the 15th century, the Coptic Church has commemorated this event by fasting for two weeks, called the Fast of the Virgin. This tradition is one that characterizes the Coptic Church.