14 works carry all of these threads.
early 20th century
2nd–3rd century CE
1st century BCE–3rd century CE
7th–6th century BCE
early 15th century
18th century
8th–10th century
ca. 2300–1900 BCE
ca. 8th–7th century BCE
ca. 3650–3300 B.C.
8th–9th century
late 17th–early 18th century
John M. Safford · 1838
