What city was the capital of the eastern half of the roman empire? what happened to the western half of the roman empire? (site 1)                                 

Constantinople was the capital of the eastern half of the Roman empire

The western half retained Rome as it's capital, however, civil war with the Eastern Empire, civil unrest, and barbaric invasions from the North greatly weakened the Western Roman empire, as well as rebellion from different provinces, which led to the fall of the western half of the Roman Empire.

hope this helps

No one knows sorry. : )