<P> The flooding of the Nile ( Arabic : عيد وفاء النيل ‎ , translit . eid wafa al - nayl ) has been an important natural cycle in Egypt since ancient times . It is celebrated by Egyptians as an annual holiday for two weeks starting August 15 , known as Wafaa El - Nil . It is also celebrated in the Coptic Church by ceremonially throwing a martyr 's relic into the river , hence the name , The Martyr 's Finger ( Coptic : ⲡⲓⲧⲏⲃ ⲛⲙⲁⲣⲧⲏⲣⲟⲥ , Arabic : Esba ` al - shahīd ‎ ) . Ancient Egyptians believed that the Nile flooded every year because of Isis 's tears of sorrow for her dead husband , Osiris . </P>
<P> The flooding of the Nile ( Arabic : عيد وفاء النيل ‎ , translit . eid wafa al - nayl ) has been an important natural cycle in Egypt since ancient times . It is celebrated by Egyptians as an annual holiday for two weeks starting August 15 , known as Wafaa El - Nil . It is also celebrated in the Coptic Church by ceremonially throwing a martyr 's relic into the river , hence the name , The Martyr 's Finger ( Coptic : ⲡⲓⲧⲏⲃ ⲛⲙⲁⲣⲧⲏⲣⲟⲥ , Arabic : Esba ` al - shahīd ‎ ) . Ancient Egyptians believed that the Nile flooded every year because of Isis 's tears of sorrow for her dead husband , Osiris . </P>
when does the nile river flood every year
when does the nile river flood every year
August
August