How william butler yeats's irish identity shaped his poetry

Yeats wrote a poem called "The Second Coming" which was dreary enough to influence the creation of Things Fall Apart by Chinua Achebe. Living in 1800s Ireland, I'm sure both he and James Joyce could effectively write in such a style what with the poverty, hunger, and submissiveness to the English that funnily enough all take precedent in Things Fall Apart. Hope this helped.