Guwahati

City · c. 353 CE · in South Asia

Capital of Kamarupa Kingdom (353–1138).

Puhar (c. 353 CE): Capital of Kalabhra Dynasty (353–600).
Banavasi (c. 353 CE): Capital of Kadamba Empire (353–525).
Wiryeseong (c. 347 CE): Capital of Baekje (347–660).
Ye (c. 337–576 CE): Capital of Later Zhao (337–351), Northern Qi (555–576).
Ji (c. 337 CE): Capital of Former Yan (337–370).
Gyeongju (c. 378 CE): Capital of Silla (378–681), Unified Silla (682–892).
Lanzhou (c. 387 CE): Capital of Western Qin (387–431).
Pingcheng District (c. 387 CE): Capital of Northern Wei (387–533).
Ravenna (c. 395 CE): Capital of Western Roman Empire (395–476), Ostrogothic Kingdom (500–553).
Mediolanum (c. 395–402 CE): Capital of Western Roman Empire (395–402).

Around the same time and place

Gupta Empire (c. 320–550 CE): Empire founded by Chandragupta I around 320 CE whose period is often called a classical age of Indian art, literature, science and mathematics.
Bagan (200–1293 CE): Capital of Pagan Kingdom (850–1293).
Plain of Jars (c. 500 BCE – c. 500 CE): Thousands of large stone jars scattered across the Xiangkhoang Plateau in Laos, associated with Iron Age mortuary practices.
Faxian’s pilgrimage to India (c. 399–412 CE): The Chinese monk Faxian travelled overland to India to collect Buddhist texts, visited Sri Lanka, and returned by sea, landing in Shandong. His account is a key source on Gupta-era India.
Iron pillar of Delhi (c. 400 CE): Wrought-iron column over 7 m tall made in the Gupta era, remarkable for its resistance to corrosion over some 1,600 years.