spectrum

1. a band of colors, as seen in a rainbow, produced by separation of the components of light by their different degrees of refraction according to wavelength
2. used to classify something, or suggest that it can be classified, in terms of its position on a scale between two extreme or opposite points

“I Have a Dream”

Martin Luther King’s Famous “I Have a Dream” Speech—Advance Text Given to the Press at the 1963 March on Washington

in larger freedom

UNITED NATIONS – PREAMBLE TO THE CHARTER OF THE UNITED NATIONS, 1946, Photomechanical Print, United States National Archives and Records Administration