The early 1900s was the era of revolution and drastic changes after the declaration of rights and bylaws by the rulers and political parties. It was known as the decade of the Gregorian calendar beginning from 1900 till 1909.
The "United Negro Improvement Association" is the group with which the text is associated for the early 1900s.
The given text is from the Declaration of rights of the Negro people in the entire world. It was the speech in 1920 in the Liberty Hall of New York, that was delegated from the UNIA meeting.
The declaration and the meeting were organized by Marcus Garvey and his Black Star Line organization.
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