Answer:
Byzantine Empire
Explanation:
The Byzantine Empire is the eastern half of the Roman Empire, which survived for a thousand years after the western half had crumbled into various feudal kingdoms and which finally fell to Ottoman Turkish onslaughts in 1453.
These are all the long term causes
<span>the execution of Jan Hus in 1415
Rudolph II and the Letter of Majesty
revoked rights
Protestant church building</span>
<span>Middle ages or Renaissance Period
By French men of noble birth called troubadours and trouvères.The troubadours and trouvères were medieval musical composers. Their heritage is immense, existing today in a huge number generally medieval original copies that contain a great many ballads and several tunes to a great extent credited to singular troubadours and trouvères.</span>
The disaster at Chernobyl was a nuclear accident in Ukraine in 1986.