I WONDER - Who Discovered Coffee?

In the 9th century, Ethiopian shepherd Caldy noticed his goats were more energetic after eating coffee cherries. Curious, he tried them himself and experienced a similar energy boost. This led to the cultivation and consumption of coffee beans as a beverage.

Who discovered coffee and in which century?

What did Caldy notice about his goats after they ate the cherries?

What did Caldy do after noticing the effects on his goats?

What was the result of Caldy's discovery?

What did the discovery of coffee eventually lead to?