496 Yamato clan and state religious ceremonies They were subordinate to the ruling families One group of be were especially important to the ruling family as they consisted of highly skilled immigrants from mainland Asia, who specialized in iron working and raising horses The Yamato court became the unifying force in Japan They began to limit the power of the lesser clan leaders and started to acquire agricultural lands to be controlled by a central body A bureaucratic ranking system was developed when the separate kingdoms were incorporated into the Yamato court, and the stronger clan leaders were given titles to reflect their status as regional chiefs The two titles bestowed on the chiefs were muraji and omi The greatest of the chiefs lived at the court and as a collective ruled over the productive lands and hence the farming communities This also gave them access to large resources of manpower to be used in such activities as burial mound building and also as conscripted troops for the military forays into the Korean Peninsula By the fourth century the Yamato court was developed enough to send envoys to mainland Asia, sometimes military, but mostly to gain knowledge of the political and cultural aspects of the far more advanced Chinese and Korean civilizations They also procured supplies of iron resources said to be plentiful in the south of Korea By the end of the fourth and in the beginning of the fifth centuries the military were involved in the expansion of Yamato power throughout the Korean peninsula At the same time Korea was going through cultural and political changes, with warring between the three kingdoms, Koguryo (north), Paekche (east), and Silla (west) Alliances were made with the Paekche, against the Silla, with Yamato gaining some power in the region However, in the sixth century Silla became more powerful militarily, causing Yamato to face power reversals in the region and forcing them to withdraw from the peninsula Paekche began to exchange knowledge and resources with the Yamato; scribes, sword smiths, horsemen, and horses were introduced to the court The Yamato court had a large number of mainland scholars brought over for their advanced knowledge and skills The Paekche court also sent a Confucian scholar, a Buddhist scholar, Buddhist scriptures, and an image of the Buddha These scholars dramatically altered the fast-developing Japanese culture Scholars were sent to China to learn about their political and cultural ideals, and in the sixth or seventh century they were brought back to the Yamato court to establish a written system based on Chinese characters and the grounding for the establishment of a parliamentary system Based on Chinese models of government, the Yamato court developed a central administrative and imperial court The sixth century saw the Soga clan’s rise to power The Soga clan, which did not claim to be descended from the gods, had entrenched themselves in the Yamato court by establishing marital connections with the imperial family As well as having administrative and fiscal skills, this allowed them considerable influence within the court structure They introduced fiscal policies based on Chinese systems and established the first treasury They collected, stored, and paid for goods produced by employees The Soga introduced to the court the idea that the Korean peninsula could be used as a trade route rather than for military conquest The powerful Soga clan was in favor of the introduction of Buddhism to Japan, but in the beginning the Soga found opposition from other clans, such as the Nakatomi, who performed the Shinto rituals at the court, and the Mononabe, who wanted the military aspect of the court to be maintained and elevated in importance Conflicts arose between the clans, with Soga vowing to build a temple and encourage the spread of Buddhism as the main instrument of worship if successful in battle They were successful, and there were several Buddhist temples built, and Buddhism became a strong religion in Japan The Soga believed that the teachings of Buddhism would lead to a more peaceful and safe society The intermarriage of the Soga with the imperial family paved the way for Soga Umako (Soga Chieftain) to install his nephew as emperor, later assassinate him, and replace him with Empress Suiko Unfortunately, Empress Suiko, was a puppet for Soga Umako and Prince Regent Shotoku Taishi A system of 12 ranks was established, making it possible to elevate the status of officials based on merit rather than birth right Prince Regent Shotoku Taishi was a devout Buddhist and a scholar of Confucian principles Under his instigation Confucian models of rank and etiquette were introduced, and he introduced the Chinese calendar He built numerous Buddhist temples, had court chronicles written, and established diplomatic links with China However, with the deaths of Prince Regent Shotoku Taishi, Soga Umako, and Empress Suiko, there was a coup to gain succession to the imperial throne The coup was led by Prince Naka and Nakatomi Kamatari, who introduced the Taika (Great Change) Reforms, which established the system of social, fiscal,