From which trade did engraving apparently develop?

Which musician was a harper employed by Duke Philip the Bold of Burgundy?

A) Philippus de Caserta B) Jean des Murs C) Baude Cordier D) Jacopo da Bologna

Zheng He were primarily motivated by the

a) desire to exact tribute to the emperor from foreign realms. b) desire to explore new lands. c) search for a sea route to Europe. d) wish to acquire slave laborers.