Piper, the pepper plants or pepper vines, is an economically and ecologically important genus in the family Piperaceae.

Hoabinhian is a lithic techno-complex of archaeological sites associated with assemblages in Southeast Asia from late Pleistocene to Holocene, dated to c. 10,000–2000 BCE. It is attributed to hunter-gatherer societies of the region and their technological variability over time is poorly understood. In 2016 a rockshelter was identified in Xiaodong rockshelter in Yunnan (China), 40 km from the border with Myanmar, where artifacts belonging to the Hoabinhian technocomplex were recognized. These artifacts date from 41,500 BCE.