A single-witness late-antique event: Ammianus is the canonical source; no second on-site witness yet (Procopius is not a reader).古代晚期单一见证事件：阿米阿努斯为正典史源；站内尚无第二见证（普罗科匹乌斯未收为阅读器）。
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
§ 23, 24, 25
Res Gestae, Books 23–25 — the eyewitness account《业绩录》卷二十三至二十五——亲历者记述
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。
Key figures关键人物
On the timeline时间轴上
→ See this and all 17 historians on the chronology spine于编年脊柱上一览本事件与全部 17 位史家