When was Emily Dickinson recognized as an important poet?

Emily Dickinson's work was largely unrecognized during her lifetime. She published only a handful of poems, and those under pseudonyms. Her true genius was only recognized after her death in 1886, when her sister, Lavinia, found over 1,700 poems in Dickinson's private writings.

It took a few more decades for her work to be widely recognized and embraced. Her poems, initially considered unconventional and eccentric, began to be celebrated for their unique style, profound themes, and powerful imagery. This recognition began in the early 20th century, and by the mid-20th century, she was firmly established as one of the most important American poets.

Therefore, it's not possible to pinpoint a specific date for Emily Dickinson's recognition as a significant poet. Instead, it was a gradual process that spanned several decades after her death.