What was the original date of construction of the fortress destroyed in 1880 by British Indian Troops?
Arg (Kabul):  The Arg was built after the destruction of the Bala Hissar in 1880 by the British Indian troops. Bala Hissar, Kabul: Bala Hissar is an ancient fortress located in the city of Kabul, Afghanistan. Bala Hissar, Kabul:  The estimated date of construction is around the 5th century AD.
i don't know