Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain
the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in
Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles
and JavaScript.
Left: gold ornament of Lou Rui’s tomb in Taiyuan City [51]. (Photo: Taiyuan Institute of Cultural Relics and Archaeology); right: gold ornament of Ru Ru Princess’s tomb [52]. (Photo: Zhu Quansheng)