Identify and explain the significance of each item below.
open-field system (p. 289)
merchant guild (p. 299)
craft guild (p. 300)
Hanseatic League (p. 303)
commercial revolution (p. 304)
sumptuary laws (p. 307)
Scholastics (p. 311)
vernacular literature (p. 314)
troubadours (p. 315)
cathedral (p. 317)
Romanesque (p. 317)
Gothic (p. 317)