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Bysantinska riket
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The siege of Constantinople in AD 717–18 was the supreme crisis of Western civilization. The Byzantine Empire had been reeling under the onslaught of Arabic imperialism since the …
The Fourth Crusade was the first, and most famous of the 'diverted' Crusades, which saw the Crusade diverted from its original target, Ayyubi Egypt, to attack the Christian city of …