Emma Lazarus was an American poet and activist born in 1849, best known for her sonnet 'The New Colossus,' which she wrote in 1883. This poem, inscribed on a plaque at the Statue of Liberty, symbolized hope and welcome for immigrants arriving in America during a time of significant new immigration waves. Lazarus's work became emblematic of the struggle for social justice and the embrace of diversity, linking her legacy to themes of nativism and the changing attitudes toward immigrants.