Samanid EmpireThe Samanid Empire (Sāmāniyān), also known as the Samanian Empire, Samanid dynasty, Samanid amirate, or simply as the Samanids, was a Persianate Sunni Muslim empire, of Iranian dehqan origin. The empire was centred in Khorasan and Transoxiana; at its greatest extent encompassing Persia and Central Asia, from 819 to 999. Four brothers—Nuh, Ahmad, Yahya, and Ilyas—founded the Samanid state. Each of them ruled territories under Abbasid suzerainty.
XinjiangXinjiang, officially the Xinjiang Uygur Autonomous Region, is an autonomous region of the People's Republic of China (PRC), located in the northwest of the country at the crossroads of Central Asia and East Asia. Being the largest province-level division of China by area and the 8th-largest country subdivision in the world, Xinjiang spans over and has about 25 million inhabitants. Xinjiang borders the countries of Mongolia, Russia, Kazakhstan, Kyrgyzstan, Tajikistan, Afghanistan, Pakistan and India.
KipchaksThe Kipchaks or Qipchaks, also known as Kipchak Turks or Polovtsians, were a Turkic nomadic people and confederation that existed in the Middle Ages, inhabiting parts of the Eurasian Steppe. First mentioned in the 8th century as part of the Second Turkic Khaganate, they most likely inhabited the Altai region from where they expanded over the following centuries, first as part of the Kimek Khanate and later as part of a confederation with the Cumans. There were groups of Kipchaks in the Pontic–Caspian steppe, China, Syr Darya and Siberia.
Sino-Roman relationsSino-Roman relations comprised the (primarily indirect) contacts and flows of trade goods, of information, and of occasional travellers between the Roman Empire and the Han Empire of China, as well as between the later Eastern Roman Empire and various Chinese dynasties. These empires inched progressively closer to each other in the course of the Roman expansion into the ancient Near East and of the simultaneous Han Chinese military incursions into Central Asia. Mutual awareness remained low, and firm knowledge about each other was limited.
SogdiaSogdia or Sogdiana was an ancient East Iranian civilization between the Amu Darya and the Syr Darya, and in present-day Uzbekistan, Turkmenistan, Tajikistan, Kazakhstan, and Kyrgyzstan. Sogdiana was also a province of the Achaemenid Empire, and listed on the Behistun Inscription of Darius the Great. Sogdiana was first conquered by Cyrus the Great, the founder of the Achaemenid Empire, and then was annexed by the Macedonian ruler Alexander the Great in 328 BC.