أسوار القسطنطينية
The cannon was first offered to Constantine XI, who turned it down due to the cost of its construction. It was later offered to the Ottoman Sultan Mehmed II, who ordered the cannon built after learning that it could smash through walls using a large projectile. When it was completed, the cannon was used by the Ottoman Army during the fall of Constantinople and played a key role in damaging the Walls of Constantinople in 1453.