question 1: Feudalism in japan all started in the 12th through 19th centuries. It was the system of independence and the social society in Europe. And lastly, the feudalism in japan was the main start of all the feudalism in the other places.
question 2: The feudalism in japan all rose because of the independence in ruling and was the head leaders/ rulers decided.
question 3: Most of the Japanese art forms were all circled around the same place and they all were things related to pottery, woodblock prints and sculpting. these were all the types of art forms but they all were invented and or came up with in time periods. They would all go and do art in peaceful and quiet places.
question 4: The social structure of federal japan is exactly what the picture above is showing and that has the order of importance, independence and ruling.