The speech is historical because of the reference used at the beginning of the speech 'Sisters and Brothers of America', for which he received a standing ovation.
The world celebrates this day as World Brotherhood Day as a mark of respect to that speech he made.
Here is the what Vivekananda said:
"It fills my heart with joy unspeakable to rise in response to the warm and cordial welcome which you have given us. I thank you in the name of the most ancient order of monks in the world.
I thank you in the name of the mother of religions andn i thank you in the name of millions and millions of Hindu people of all classes and sects."
Speaking about Hinduism he said, "I am proud to belong to a religion which has taught the world both tolerance and universal acceptance. We believe not only in universal tolerance but we accept all religions as true."
He said in his speech that Hindus had received their religion through revelation, the Vedas.
During his speech Vivekananda said that he was not feeling well and wished to be excused but the crowd roared 'Go on' so he continued his speech.
Praising the Parliament of Religions, he said that it had shown to the world that holiness, purity and charity are not exclusive possessions of any church in the world."