To lift the siege of Constantinople in 1453, which was prolonged due to the formidable Theodosian Walls safeguarding the city, the Ottoman Empire deployed the largest cannon of its time – the third largest in terms of caliber ever recorded – to breach the city's defenses. nostr:npub12rzunrxvx89f78h4df284lzvkjqetljkq0200p62ygwmjevx0j8qhehrv9