The World's Parliament of Religions is widely regarded by historians of religion as the first major organized attempt at interfaith dialogue on a global scale, bringing together representatives of Christianity, Judaism, Islam, Hinduism, Buddhism, Jainism, Zoroastrianism, Confucianism, Shinto and other traditions to address a shared American audience. For Hinduism specifically, Vivekananda's appearance is generally treated as a turning point: prior American and European awareness of Hindu religion had come substantially through Orientalist scholarship and Christian missionary polemic, both of which tended to present it as an object of study or a target for conversion rather than a living tradition capable of speaking for itself.
Vivekananda's framing of Vedanta as a universal, rationally defensible philosophy compatible with modern science proved influential well beyond his own lifetime, shaping how later generations of Western seekers and scholars approached Hindu thought, and providing a template that other Asian delegates, including Buddhist and Jain representatives, drew on in presenting their own traditions to the same audience.
Within India, news of Vivekananda's reception in Chicago traveled quickly and was received as a matter of national pride, feeding into the wider currents of religious and cultural self-assertion running through late nineteenth century Indian reform movements. The event is still commemorated in India, closely associated with the argument that Hindu philosophy could meet Western thought on equal terms.