Which American Realist artist, having studied both painting and medicine, believed that careful observation was a prerequisite for his art?

Why is singing classical music so difficult?

a. It requires singers to slide in between the traditional notes of a scale. b. It requires singers to sing long phrases, have a wide range, and sing in many languages. c. Classical singers tend to be looked down upon in popular culture. d. The music requires improvisatory singing on nonverbal syllables.

What was the beginning of what would later be known as the Holy Roman Empire?

A. when Patrick converted the Irish B. when Pope Leo III's crowned Charlemagne as emperor C. when Charlemagne became both pope and king D. when the Book of Kells was written