You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "when did rome divided into east and west?" whose answer is AD 285.
Each document should contain about 30 words, and these documents should contain useful information.

Query: division of the roman empire into east and west
Useful Output:

Doc 1: In 285 AD, Diocletian took a bold step by dividing the Roman Empire into two halves: the Eastern Roman Empire and the Western Roman Empire.
Doc 2: The Roman Empire was split again in 395 AD upon the death of Theodosius I, Roman Emperor in Constantinople, never again to be made whole.
Doc 3: Figure 13.1.1: The Roman Empire after its political division between east and west under Diocletian. From the third through fifth centuries
Doc 4: 285/286-305 CE) his co-emperor and, in doing so, divided the empire into halves with the Eastern Empire's capital at Byzantium (later
Doc 5: Welcome to our latest episode on 5 Minute Histories! Today, we delve into one of the most strategic decisions in ancient history: