The history of Bukhara stretches back millennia. The origin of its inhabitants goes back to the period of Aryan immigration into the region.[1] The city itself, currently the capital of the Bukhara Region (viloyat) of Uzbekistan, is about two and a half thousand years old. Located on the Silk Road, the city has long been a centre of trade, scholarship, culture, and religion. During the Golden age of Islam, under the rule of Samanids, Bukhara became the intellectual centre of the Islamic world. In medieval times, Bukhara served as the capital of the Khanate of Bukhara and was the birthplace of Imam Bukhari.
UNESCO has listed the historic centre of Bukhara, which contains numerous mosques and madrassas, as one of the World Heritage Sites.
Bukhara functioned as one of the main centres of Persian civilization from its early days in the 6th century BCE. The city's architectural and archaeological sites form one of the pillars of Central Asian history and art.[citation needed] The region of Bukhara has long been formed part of the Persian Empire.
According to the notes of the Chinese traveler Jen Kyan (126 B.C.), the steppe part of Turkestan was populated by nomadic Turkic tribes. Settled Aryan tribes lived in the valleys of the Zeravshan, the Chirchik and the Angren.