The political government for Japan is run by some agricultural classes and families. But th some common political government is ran by a emporer. But, in Japanese history the emperor is sometimes assassined or over thrown by a group of people.
Economic and administrative activity increased during the Nara period. Roads linked Nara to provincial capitals, and taxes were collected more efficiently and routinely. Coins were minted, if not widely used. Outside the Nara area, however, there was little commercial activity, and in the provinces the old Shotoku land reform systems declined. By the mid-eighth century, shoen (landed estates), one of the most important economic institutions in medieval Japan, began to rise as a result of the search for a more manageable form of landholding.
Another major cultural development of the era was the permanent establishment of Buddhism in Japan. Buddhism had been introduced in the sixth century but had a mixed reception until the Nara period, when it was heartily embraced by Emperor Shomu. Shomu and his Fujiwara consort were fervent Buddhists and actively promoted the spread of Buddhism, making it the "guardian of the state" and strengthening Japanese institutions through still further Chinese acculturation.