The accounts记述 · the ancient witnesses
Greek historians · 希腊史家
Polybius — The Histories （波利比乌斯·历史）primary source · 源典
Polybius names the first college differently and dates it by the Xerxes synchronism波利比乌斯所记首任执政官人选不同，并以薛西斯渡海为同步点定年
Appian — Roman History （阿庇安·罗马史）witness · 见证
Roman historians · 罗马史家
Livy — Ab Urbe Condita （李维·建城以来史）primary source · 源典31 loci · well-attested
§ 2.1–8 · 31/31 in the cited books
'Two consuls were then elected ... Lucius Junius Brutus and Lucius Tarquinius Collatinus' (1.60.3), and the opening of Book 2「于是选出两名执政官……卢奇乌斯·尤尼乌斯·布鲁图斯与卢奇乌斯·塔克文·科拉提努斯」（1.60.3）及卷二开篇
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