The Tale of Igor's Campaign
The Tale of Igor's Campaign (Old East Slavic: Слово о пълкѹ Игоревѣ, romanized: Slovo o pŭlku Igorevě) is an anonymous epic poem written in the Old East Slavic language. The poem gives an account of a failed raid of Igor Svyatoslavich (d. 1202) against the Polovtsians of the Don River region. While some have disputed the authenticity of the poem, the current scholarly consensus is that the poem is authentic and dates to the Middle Ages (late 12th century).
The Tale of Igor's Campaign was adapted by Alexander Borodin as an opera and became one of the great classics of Russian theatre. Entitled Prince Igor, it was first performed in 1890.