Here are two ways Japanese and European feudalism were similar and two ways they were different:
Similarities:
1. Both had a pyramid social structure with lords at the top granting land to vassals who owed military service. In Japan it was emperors, shoguns, daimyo, and samurai while in Europe it was monarchs, lords, and knights.
2. Both had a warrior class at the top of society whose code of conduct emphasized bravery, loyalty and honor. For samurai it was bushido and for knights it was chivalry.
Differences:
1. In Japan, the emperor was purely a figurehead while in