Yunnan's cultural life is one of remarkable diversity. Archaeological findings have unearthed sacred burial structures holding elegant bronzes in Jinning, south of Kunming. In Zhaotong in northeastern Yunnan, there has been discovered, frescos of the Jin Dynasty (265–420). Many Chinese cultural relics have been discovered in later periods. The lineage of tribal way of life of the indigenous peoples persisted uninfluenced by modernity until the mid-20th century. Tribal traditions, such as Yi slaveholding and Wa headhunting, have since been abolished. After the Cultural Revolution (1966–76), when many minority culture and religious practices were suppressed, Yunnan has come to celebrate its cultural diversity and subsequently many local customs and festivals have flourished.[38]