Final answer:
The Russian Empire in the 1800s was immense, with territories in Asia, Europe, and North America. It was a world power, but faced industrial lag and ongoing wars. Social and political changes set the stage for future revolution.
Step-by-step explanation:
The extent of the Russian Empire in the 1800s was vast, with its territory stretching from parts of Asia, Europe, and North America. It was the third-largest country in population, with diverse languages, religions, and economic status. The empire continued to expand eastward into Central Asia, southward into the Caucasus region, and westward into Poland and Finland. However, it lagged behind Europe in industrial growth and faced constant warfare. Social and political changes developed, leading to the eventual revolution in the next century.