Lay of Igor's Campaign

The Tale of Igor's Campaign (Old East Slavic: Слово о плъкоу Игоревѣ, Slovo o plŭku Igorevě) is an anonymous epic poem written in the Old East Slavic language. The title is occasionally translated as The Tale of the Campaign of Igor, The Song of Igor's Campaign, The Lay of Igor's Campaign, The Lay of the Host of Igor, and The Lay of the Warfare Waged by Igor.

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 medieval period (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.

The story describes a failed raid made in year 1185 by Kniaz Igor Svyatoslavich, Prince of Novgorod-Seversk (of the Chernigov principality of ancient Rus') on the Polovtsians (Cumans) tribe living in the southern part of the Don region. Other Rus' historical figures are mentioned, including skald Boyan (The Bard), the princes Vseslav of Polotsk, Yaroslav Osmomysl of Halych, and Vsevolod the Big Nest of Suzdal. The author appeals to the warring Rus' princes and pleads for unity in the face of the constant threat from the Turkic East.

...
Wikipedia