Has the territory of the Crimean peninsula always been inhabited by ethnic Russians? Not true. Let's take a look at who previously lived in Crimea and within which states.
Has the territory of the US and Canada always been inhabited by US citizens? Not true. Let's take a look at who previously lived in the North America:
With the Age of Exploration and the voyages of Christopher Columbus (starting in 1492), Europeans began to arrive in the Americas in large numbers and develop colonial ambitions for both North and South America.[citation needed] An influx of Europeans soon followed Columbus and overwhelmed native populations as North America became a staging ground for ongoing European rivalries. The continent was divided by three prominent European powers: England, France, and Spain. The influence of colonization by these states on North American cultures is still apparent today.