Answer:
They are drawn by people who are directly involved in the events they are depicting.
Are there options? If not, I believe you meant to write glib? If I am not mistaken a good definition would be fluent, smooth, easy and unconstrained. Hope this helps!
Because they were tolerant of different beliefs and encouraged trade between different cultures along the Silk Road, ensuring the safety of traders traveling along the trade routes.
Answer:
Potential
real GDP equals potential GDP when the economy is at full employment