Lignum nephriticum cup product of narra wood (the namesake of the province) generated opalescent colours when drinking water is poured into it. These wooden cups ended up a major pre-colonial and colonial industry of Naga. Naga would be the indigenous pre-colonial identify of the city. It is actually named https://beckettugsdn.ageeksblog.com/27414455/5-simple-statements-about-23naga-explained