The accounts记述 · the ancient witnesses
Greek historians · 希腊史家
Cassius Dio — Roman History （卡西乌斯·狄奥·罗马史）primary source · 源典
§ 73, 75, 76
reader-loci 73.13–73.17 (the rival proclamations) and 75.1–76.8 (the wars against Niger and Albinus). Reader book 74 is missing from the capture, so the march on Rome is a gap in the on-site text.阅读器编号73.13至73.17（诸帝并立）及75.1至76.8（对尼格尔与阿尔比努斯之战）。所收文本缺卷七四，故进军罗马一段为站内文本之阙。
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