What was the Russian empire a multi-ethnic with populations of?

The Russian Empire was a multi-ethnic empire that encompassed a diverse range of populations, including Russians, Ukrainians, Belarusians, Poles, Finns, Baltic peoples, and various ethnic groups from Central Asia and the Caucasus, such as Tatars, Chechens, and Armenians. This diversity was a result of the empire's vast territorial expansion over centuries, incorporating numerous cultures and languages. The Russian government often sought to promote a sense of Russian identity while managing the complexities of its varied ethnic groups, leading to both integration efforts and tensions throughout its history.