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 Empire
Between 1742 and 1867, the Russian-American Company administered Alaska as a colony. The Company also established settlements in Hawaii, including Fort Elizabeth (1817), and as far south in North America as Fort Ross Colony (established in 1812) in Sonoma County, California just north of San Francisco. Both Fort Ross and the Russian River in California got their names from Russian settlers, who had staked claims in a region claimed until 1821 by the Spanish as part of New Spain.