There is a controversial history of the emblem of the coat of arms of Nizhny Novgorod,  from the Order of Lenin ,named after the leader of the Russian October Revolution, where some historians believe in the 17th century an elk was depicted and some believe a deer was depicted
The history of the emblem of the coat of arms of Nizhny Novgorod is controversial. Some historians believe that in the 16th and 17th centuries the elk was depicted on the coat of arms of Nizhny Novgorod, and in the 18th century, the King-of-Arms turned it into a deer. Other scientists believe that already in the 17th century, a deer was depicted on the coat of arms. Order of Lenin The Order of Lenin (Russian:  , romanized: Orden Lenina, pronounced [ordn lenn), named after the leader of the Russian October Revolution, was established by the Central Executive Committee on April 6, 1930. 
