Claim: The family of Julian Martinez is credited for inventing a revolutionary technique that would allow for areas of the pottery to have a matte finish and other areas to be a glossy jet black, and together with Edgar Lee Hewett (an archaeologist and anthropologist whose focus was the Native American communities of New Mexico and the northwestern United States) researched historical designs and reproduced them on the pottery.
Evidence: Edgar Lee Hewett (November 23, 1865 – December 31, 1946) was an American archaeologist and anthropologist whose focus was the Native American communities of New Mexico and the southwestern United States.