The accounts记述 · the ancient witnesses
Roman historians · 罗马史家
Ammianus Marcellinus — Res Gestae (extant Bks 14–31) （阿米阿努斯·马尔切利努斯·业绩录（存卷十四至三十一））primary source · 源典
§ 14, 15, 16, 17, 18, 19, 20, 21
Res Gestae, Books 14–21 — the surviving text opens inside this reign, with Gallus Caesar at 14.1 and Constantius' death at 21.15《业绩录》卷十四至二十一——今存之文正开篇于此朝，14.1记凯撒伽卢斯，21.15记君士坦提乌斯之卒
Provenance: “primary source” = curated canonical witness (editorial); “dated witness” = derived from the ToposText date index by year-span, with the matched loci count. Sparse counts may include incidental mentions.出处：「源典」为校订之正典见证（编辑判断）；「系年见证」由 ToposText 系年索引按年代跨度推得，附匹配条目数；稀少者或含偶涉。
On the timeline时间轴上
→ See this and all 18 historians on the chronology spine于编年脊柱上一览本事件与全部 18 位史家