Zhou Dynasty established its capital in Feng (灃/沣) and Hao (鎬/镐) between the late 11th century BC and 770 BC, both located west of contemporary Xi'an. In 770 BC, the capital was moved to Luoyang due to political unrest.
202 BC: Liu Bang, the founding emperor of the Han Dynasty, established Chang'an province as his capital; his first palace Changle Palace (長樂宮/长乐宫) was built across the river from the ruin of the Qin capital. This is traditionally regarded as the founding date of Chang'an and Xi'an.
194 BC: Construction of the first city wall of Chang'an began, which was not finished until 190. The wall measured 25.7 km in length, 12–16 m in thickness at the base. The area within the wall was ca. 36 km².
190 AD - The most powerful tyrant of the time, Dong Zhuo, moved his court from Luoyang to Chang'an in a bid to avoid a coalition of powerful warlords going against him.
582: Emperor of Sui Dynasty ordered a new capital to be built southeast of the Han capital, called Daxing (大興, great excitement). It consisted of three sections: the palace, the imperial city, and the civilian section. The total area within the wall was 84 km², The main street Zhuque Avenue measured 155 m in width. It was at the time the largest city in the world. The city was renamed Chang'an (長安, Perpetual Peace or Eternal Peace) by the Tang Dynasty.
7th century: Buddhist monk Xuanzang, well known as Tang Sanzang in China, established a sizeable translation centre after returning from India with Sanskrit (the first language spoken in India) scriptures.
652: Construction of Great Wild Goose Pagoda began. It measured 64 m in height. This pagoda was constructed for the storage of the translations of Buddhist sutras obtained from India by the monk Xuanzang.
Schellinger and Salkin, ed. (1996). "Xian". International Dictionary of Historic Places: Asia and Oceania. UK: Routledge. pp. 870–873. ISBN9781884964046.
Tingwei Zhang (2004). "Industrial restructuring and urban spatial transformation in Xi'an". In Laurence J.C. Ma and Fulong Wu. Restructuring the Chinese City: Changing Society, Economy and Space. Routledge. p. 140+. ISBN978-1-134-31609-0.