Answer:
Option: It lasted another 1000 years.
Explanation:
In 476 CE, the Western Roman Empire collapsed, and Romulus became the last of the Roman emperors. The Eastern Empire, after the fall of the Western Roman Empire, thrives for another thousand years. The Eastern Roman Empire became the Byzantine Empire. The Byzantine Empire became rich and flourished because of its location. Its capital, Constantinople, became the center of a trade route. Constantinople remained powerful and wealthy because of the strong military while cities in the Western Roman Empire crumbled.
Sovereignty
A nation-state's sovereignty applies not only to determining its own form of government but also to being free from interference by outside powers. The principle of sovereignty was established in Western history by the Treaty of Westphalia in 1648, at the end of the 30 Years War. The principle recognized the right of rulers to govern their own territories and not be controlled by other powers outside their territories.
Canada left the British Commonwealth in 1867. Several major events took place during the era were British were ruling, and this made Canada take the decision to leave the British Commonwealth.
This establishes the executive branch of the Federal Government.