Mansa Musa developed cities like Timbuktu and Gao into important cultural centers. He also brought architects from the Middle East and across Africa to design new buildings for his cities. Mansa Musa turned the kingdom of Mali into a sophisticated center of learning in the Islamic world.
No they do not. because as Solomon said it, ...grievous words stirreth up anger... and as he said, they don't. notice people in an argument are usually yelling or angry. unless it's a friendly argument of course. so no they do not.