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..
Answered by The Community. Making the world better, one answer at a time. Black history month began as negro history week by Carter G. Woodson. It was the third week in February to coincide with Lincoln's birthday on the 12th as well as Frederick Douglas birthday on the 14th.