History of cappuccino

It is believed that coffee was discovered in Abyssinia in East Africa, in what is now Ethiopia around 800 AD. The history of coffee is a little unclear why it is so long remained unknown to non-Arab peoples and why it took so long to come in Europe. Coffee became known to Europeans in the 17th century.

This question is even more interesting because Europeans known of Abyssinia for over 3000 years.