The thumbnail image used in this post, "Martin Luther King, Jr. Portrait", is by ctankcycles, used under an Attribution-NonCommercial-ShareAlike 2.0 Generic (CC BY-NC-SA 2.0) Creative Commons license.
La imagen de miniatura usada en este post, "Retrato de Martin Luther King, Jr.", es de ctankcycles, usada con licencia Creative Commons Attribution-NonCommercial-ShareAlike 2.0 Generic (CC BY-NC-SA 2.0).