Moghulistan (Mughalistan, Moghul Khanate) (from Persian: مغولستان‎‎, Moqulestân/Moġūlistān), also called the Eastern Chagatai Khanate (Chinese: 东察合台汗国; pinyin: Dōng Cháhétái Hànguó), was a Mongol breakaway khanate of the Chagatai Khanate and a historical geographic area north of the Tian Shan mountain range, on the border of Central Asia and East Asia. That area today includes parts of Kazakhstan, Kyrgyzstan, and northwest China (Xinjiang). A khanate nominally ruled over the area from the mid-14th century until the late 17th century, although it is debatable whether it was a continuation of the Chagatai Khanate, an independent khanate, or a tributary state to Ming Dynasty China.