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
§ 69
Roman History 69.1-69.2 — 'Hadrian had not been adopted by Trajan; he was merely a compatriot and former ward of his'《罗马史》69.1-69.2——“哈德良并未为图拉真所收养；他不过是同乡与旧日受监护者”
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