Besides the Ottoman invasion and conquest in 1453, you mean? Well, since it had become the richest empire in Europe it had brought about the envy of other regional powers. The Venetian Republic had even tricked, conquered and plundered Byzantium approximately 2 centuries earlier (much of Venice's riches come in fact from Byzantium), on the pretext of preparing for yet another crusade. I believe they were not the only crusaders to behave in this way.
The main cause was the Fourth Crusade which attacked Constantinople in 1204 AD and stole most of its wealth.
Constant warfare and struggles for the throne hurt the empire. As the empire was getting weaker and weaker enemies kept attacking.
No, as religion was what kept The Empire going.
The Ottoman Empire, but truthfully due to a series of civil wars and partial defeats by other empires the Byzantine empire had been in decline for centuries prior to their final defeat
The Ottoman Turks.
The Arab conquest of Byzantine Syria, Phoenicia (Lebanon), Palestine and Egypt contributed the decline of the Byzantine Empire. So did the conquest of much of what is now Turkey by the Seljuk Turks and the conquest of much of the Balkan Peninsula (southeastern Europe) by the Slavs. The Arabs and the Turks were and still are Muslims.
The Byzantine Empire declined after Islam spread. The words "Islam spread" are nebulous. If the question is referring to the Rise of Islam period, when Mohammed and the Rightly-Guided Caliphs were spreading Islam, then yes, the Byzantine Empire decline after these events. If, however, you are referring to the Seljuk and Ottoman conquests of Anatolia nearly 600 years later which eventually ended the Byzantine Empire, the Empire was in decline long before these armies trampled the Byzantines to the ground. The answer is more complex than the above answers would purport. See the link below for another relevant answer.
wargreed bankruptcy famine one of these
No, as religion was what kept The Empire going.
The Ottoman Empire, but truthfully due to a series of civil wars and partial defeats by other empires the Byzantine empire had been in decline for centuries prior to their final defeat
icons
Turks, Arabs and European crusaders
The Ottoman Turks.
The Arab conquest of Byzantine Syria, Phoenicia (Lebanon), Palestine and Egypt contributed the decline of the Byzantine Empire. So did the conquest of much of what is now Turkey by the Seljuk Turks and the conquest of much of the Balkan Peninsula (southeastern Europe) by the Slavs. The Arabs and the Turks were and still are Muslims.
Marrocos infantry and chialvary captured Sangais Empire
After the decline of Byzantine empire, Moscow's most successor person was ivan III. He ruled most of the byzantine as well as russian territories. He also married the niece of the last emperor of the byzantine empire. he also adapted the culture, religion, and the symbol of the byzantine empire. so, it is called as the third rome or compared as the empire of rome.
The Byzantine Empire declined after Islam spread. The words "Islam spread" are nebulous. If the question is referring to the Rise of Islam period, when Mohammed and the Rightly-Guided Caliphs were spreading Islam, then yes, the Byzantine Empire decline after these events. If, however, you are referring to the Seljuk and Ottoman conquests of Anatolia nearly 600 years later which eventually ended the Byzantine Empire, the Empire was in decline long before these armies trampled the Byzantines to the ground. The answer is more complex than the above answers would purport. See the link below for another relevant answer.
false
They competed with the Byzantines in order to trade with Asia. They were successful and ended up gaining positions in the Empire.