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.
Russian colonization of the Americas
Imperial Russia was unique among European empires for having no state sponsorship of foreign expeditions or territorial (conquest) settlement. The first state-protected trading company for sponsoring such activities in the Americas was the Shelikhov-Golikov Company of Grigory Shelikhov and Ivan Larionovich Golikov. A number of other companies were operating in Russian America during the 1780s. Shelikhov petitioned the government for exclusive control, but in 1788 Catherine II decided to grant his company a monopoly only over the area it had already occupied. Other traders were free to compete elsewhere. Catherine's decision was issued as the imperial "ukase" (proclamation) of September 28, 1788.