The city's golden period was in the 14th century CE when the ruler Mansa Musa built mosques of pounded earth and established universities which gained the city international fame as a centre of Islamic learning.
Buy eco friendly items, turn of the lights in your house, start a compost bin, only buy things you know you Weill eat.
"Tone" is the author's attitude toward a subject.
B and D. Sparta liked war and having things that are practical, but Athens liked beauty and peace.
Those who do not learn from the past are destined to repeat it.