Hot black oxide can be done from generic mixtures of caustic soda, sodium nitrite / nitrate, wetting agents and stabilizers or from proprietary mixes. The result of the process is an attractive but very thin and marginally corrosion-resistant, dark black iron oxide finish.
Negro History Week (1926). The precursor to Black History Month was created in 1926 in the United States, when historian Carter G. Woodson and the Association for the Study of Negro Life and History announced the second week of February to be Negro History Week..
Black History Month is an annual celebration of achievements by African Americans and a time for recognizing the central role of blacks in U.S. history. The event grew out of âNegro History Week,â the brainchild of noted historian Carter G. Woodson and other prominent African Americans.