Kupiansk
Kupiansk stands on the Oskil, a tributary of the Siverskyi Donets, in the river country of Sloboda Ukraine. It first appears in written records in 1665 as Kupynka, a Cossack sloboda belonging to the Kharkiv regiment. From 1685 it was a company town of the Izium regiment, a role it held until the reorganisation of the Sloboda regiments in 1765. Its early history belongs to the growth of Cossack settlements along the southern frontier.