Who explored Kentucky and blazed a trail known as the Wilderness Road?

Daniel Boone

Which color do you get when you mix blue and red? Which carol originally written in German is titled 'O Tannenbaum'? Which type of electromagnetic radiation allows humans to see objects? What was the name of the secret U.S. diplomatic effort aimed at purchasing Cuba from Spain in 1854? Who is Link’s horse companion in multiple Legend of Zelda titles?