The color red, which represents luck, happiness and passion in China, could have been used in clothing 15,000 years ago... The Xuchang ruins made headlines in foreign media in January when State Administration of Cultural Heritage announced that Chinese archaeologists had found a human skull dating back at least 80,000 years in the ruins last December... [T]his month, their excavation team found from the soil strata dating back 15,000 years, or the late Paleolithic Era, at the Xuchang ruins more than 20 pieces of hematite, one of iron oxides commonly used as a dyestuff, alongside three dozen thin instruments made...