No swords were found. Small bronze knives and dagger-axes were bent or snapped before burial.
Debated. The page reads those breaks as a peace sign, using an idea written in a later book.
The graves are at Jiangliu, in Shaanxi, China. They belong to the Western Zhou period, 1046 to 771 BC, about 3,000 years ago. Thirteen tombs were opened. Most held only a cooking pot and a jar. The page calls the place a commoners' cemetery.
Whether the breaks were truly a rite for peace is still only a reading.
https://www.ancient-origins.net/news-history-archaeology/broken-weapons-burial-china-00102692