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Southeast Asia

From the 8th century onward, Southeast Asia stood to benefit from the trade taking place between South Asia and East Asia, numerous kingdoms arose in the region due to the flow of wealth passing through the Strait of Malacca. While Southeast Asia had numerous outside influences including Indian and Chinese Civilization, local cultures strove to cement their own unique identities. North Vietnam (known as Dai Viet) was culturally closer to China for centuries due to conquest.

Since rule from the third century BCE, North Vietnam continued to be subjugated by Chinese states, although they continually resisted periodically. There were three periods of Chinese domination that spanned near 1100 years. The Vietnamese gained long lasting independence in the 10th century when China was divided with Tĩnh Hải quân and the successor Đại Việt. Nonetheless, even as an independent state a sort of begrudging Sinicization occurred. South Vietnam was governed by the ancient Hindu Champa Kingdom but was annexed by the Vietnamese in the 15th century.

The spread of Hinduism, Buddhism, and maritime trade between China and South Asia created the foundation for Southeast Asia's first major empires; including the Khmer Empire from Cambodia and Srivijaya from Indonesia. During the Khmer Empire's height in the 12th century the city of Angkor Thom was among the largest of the pre-modern world due to its water management. King Jayavarman II constructed over a hundred hospitals throughout his realm. Nearby rose the Pagan Empire in modern-day Burma, using elephants as military might. The construction of the Buddhist Shwezigon Pagoda and its tolerance for believers of older polytheistic gods helped Theravada Buddhism become supreme in the region. In Indonesia, Srivijaya from the 7th through 14th century was a thalassocracy that focused on maritime city states and trade. Controlling the vital choke points of the Sunda and Malacca Straits it became rich from trade ranging from Japan through Arabia.

Gold, ivory, and ceramics were all major commodities traveling through port cities. The empire was also responsible for the construction of wonders such as Borobudur. During this time Indonesian sailors crossed the Indian Ocean; evidence suggests that they may have colonized Madagascar. Indian culture spread to the Philippines, likely through Indonesian trade resulting in the first documented use of writing in the archipelago and Indianized kingdoms.

Over time, changing economic and political conditions elsewhere and wars weakened the traditional empires of Southeast Asia. While the Mongol invasions did not directly annex Southeast Asia, the war-time devastation paved way for the rise of new nations. In the 14th century the Khmer Empire was uprooted by persistent years of war - losing the functionality and engineering knowledge of its advanced water management system. Srivijaya was overtaken by the Majapahit. Islamic missionaries and merchants arrived eventually leading to Islamization in Indonesia.