The accounts记述 · the ancient witnesses
Greek historians · 希腊史家
Appian — Roman History （阿庇安·罗马史）primary source · 源典21 loci · well-attested
§ 1.0–5
Civil Wars 1.1.9–1.4.26 — Appian opens his whole account of the civil wars with Tiberius Gracchus, and calls his killing 'the first that was perpetrated in the public assembly'《内战记》1.1.9–1.4.26：阿庇安以提比略·格拉古为其整部内战史的开端，并称杀他是“公民大会上的第一起此类暴行”
Polybius — The Histories （波利比乌斯·历史）dated witness · 系年见证583 loci · well-attested
§ 1.1–4, 2.44–45, 3.1–33, 4.38–49, 5.31–33, 6.10–59, 7.1–8, 8.1–38 +8
Josephus — Works (Antiquities · Wars · Apion · Life) （约瑟夫斯·著作（古史·战争·驳阿庇翁·自传））dated witness · 系年见证5 loci · attested
§ 1.57–67
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