William Butler Yeats was an Irish poet, playwright, and politician, born on June 13, 1865, in Dublin, Ireland. He is considered one of the greatest poets of the 20th century and was a key figure in the Irish Literary Revival. Yeats's work often reflects themes of mysticism, folklore, and the complexities of love and politics. In 1923, Yeats was awarded the Nobel Prize in Literature for his poetic expression and contributions to literature. His notable works include "The Lake Isle of Innisfree" and "Sailing to Byzantium." Yeats's influence extends beyond poetry, impacting modernist literature and the cultural landscape of Ireland.