The is important in language, emotional expression, planning, and carrying out plans, while the plays a critical role in the formation of long-term memories.

Prefrontal cortex ; hippocampus

Explanation: The prefrontal complex is the part of brain that helps in the achieving goals.

It receives the information from different parts of the brain and controls a wide variety of functions such as language, planning about something, the use of proper expressions at different moments.

It also helps in focusing attention on goal that one wants to achieve.

Whereas, the hippocampus is also a structure embedded int he brain. It helps in learning and crating memory. It plays a very important role in the remembering things for a longer period of time( long-term memories)

imperial crisis leads to civil war.

roman forces withdraw from britain as goths attack rome.

odoacer topples romulus augustus

huns attack the empire and drive german peoples ahead of them.