The first cause of the decline of Byzantine Empire was the Arab wars. In the west side of Byzantium conflicts rose and began to cause trouble for the Empire.
The events are in this order as occured in the world history;
1) Sepoy Rebellion (This is also known as Indian Mutiny, the Great Rebellion, the Revolt of 1857 etc. and was the first major uprising against East India Company and reportedly set path for the establishment of British Raj in India)
2) British Raj established. (1858)
3) World War 1 (1914)
4) Amritsar Massacre (1919) (This is also known in Indian History as The Jallianwala Bagh massacre)
The reason that Columbus sailed the sea was.
<span>B. He wanted to prove that the world was round</span>
The Justinian
Code was created in order to create one single set of laws for all of the
Byzantine Empire. This code was extremely important because it served as the
basis for everyday actions within the empire including marriage, criminal
justice, slavery, and property rights. Along with this, the code ended up
serving as the basis for the laws of the Byzantine Empire for the next 900
years. Countries all over world use ideas from Justinian Code's in order to
form a comprehensive set of laws. The four sections of the code are the Codex
Constitutionum, Digesta, Institutiones, and the Novella Constitutiones Post
Codicem.
The answer should be C and E. Hope this helps!