The battle between de Anza and Cuerno Verde which occurred at Greenhorn Mountain was in the early hours of the 3rd of September 1779. Initially, the Spanish troops led by Don Juan Bautista de Anza moved towards the territory of Comanche forces led by Cuerno Verde.
The Comanche force was just about 50 people while the Spanish troops were around 600 personnel. During the battle, the Spanish troops under the command of de Anza tactically isolated Cuerno Verde, of which he was eventually surrounded and finally killed along with his first son.
Du Bois was a doctoral student at Friedrich-Wilhelms-Universität, was the first African American to receive a Ph. D. from Harvard University (in 1895), and was awarded an honorary doctoral degree from Humboldt-Universität in 1958.
