Historical records compiled more than 600 years ago about Genghis Khan's empire have been translated into the Mongolian language, experts said on Tuesday. The records consist of 15 books with 210 volumes and chronicle the rise and fall of the Mongol empire. They were compiled in 1370 as ordered by Zhu Yuanzhang, the first emperor of the Ming Dynasty (1368-1644), which ended the Mongolian reign in China.

Over the past six centuries, historians have made several attempts to translate the books, written in classical Chinese, into Mongolian. But the efforts were interrupted due to difficulty and war.

In March 2014, 16 experts in Mongolian history teamed up to begin translation. They believe the historical records could help Mongolian people better understand their own history.

The books will be published in the next two years.

One of the largest empires in history, the Mongol Empire, later known as the Yuan Dynasty (1271-1368) in China, once extended from China to Central Europe. Its founder, Genghis Khan, unified nomadic tribes before conquering large areas of Eurasia.