Russian Empire
Though the Empire was only officially proclaimed by Tsar Peter I following the Treaty of Nystad (1721), some historians would argue that it was truly born either when Ivan III of Russia conquered Veliky Novgorod in 1478, or when Ivan the Terrible conquered the Khanate of Kazan in 1552. According to another point of view, the term "Tsardom", which was used after the coronation of Ivan IV in 1547, was already a contemporary Russian word for empire.
Russia
In the 18th century, during the era of Russian Enlightenment, the development of Russian literature was boosted by the works of Mikhail Lomonosov and Denis Fonvizin. By the early 19th century a modern national tradition had emerged, producing some of the greatest writers in Russian history. This period, known also as the Golden Age of Russian Poetry, began with Alexander Pushkin, who is considered the founder of the modern Russian literary language and often described as the "Russian Shakespeare". It continued with the poetry of Mikhail Lermontov and Nikolay Nekrasov, dramas of Alexander Ostrovsky and Anton Chekhov, and the prose of Nikolai Gogol and Ivan Turgenev. Leo Tolstoy and Fyodor Dostoyevsky have been described by literary critics as the greatest novelists of all time.