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
Res Gestae 23.2.6: 'And when the season was now sunny, he set out on the fifth of March, and came by the usual route to Hierapolis. There, as he was entering the gates of the great city, a colonnade on his left suddenly collapsed' — the omen sequence continues at 23.3.3 with the dreams《业绩录》23.2.6：“时序既晴，遂以三月五日启行，循常道至希拉波利斯。方入大城之门，其左柱廊忽圮”——凶兆之叙至23.3.3记其梦
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