1) Historical region 
Champaran is a historic region which now forms the East Champaran district, and the West Champaran district in Bihar. Champaran was part of erstwhile Mithila under celebrated King Janak. == Boundaries == Champaran District was created in 1866. On 1 December 1971 it was split into two districts: Paschim Champaran and Purbi Champaran. The headquarte...