The accounts记述 · the ancient witnesses
Greek historians · 希腊史家
Diodorus Siculus — Library of History （狄奥多罗斯·历史丛书）primary source · 源典39 loci · well-attested
§ 15.28–35 · 39/39 in the cited books
Bk 15.28–30 — the alliance formed against Sparta, the accession of the Euboean cities, and the synedrion卷十五 28–30：为抗斯巴达而结的同盟、优卑亚诸城加入，以及同盟议事会
Xenophon — Hellenica （色诺芬·希腊史）primary source · 源典38 loci · well-attested
§ 5.4–4 · 38/38 in the cited books
Bk 5.4 — the Theban–Athenian rapprochement that made the league possible卷五 4：使同盟得以成立的底比斯与雅典和解
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