1. (Jeffrey Smith per Keith Wilson, August 14, 2008) Weapon and Armament added as secondary classification.
2. (Najiba Choudhury per Keith Wilson, August 15, 2017) Title changed from "Forked blade (zhang), fragment" to "Forked blade (zhang 璋), fragment"; period one changed from "Shang dynasty" to "Late Neolithic period"; date changed from "ca. 2000-1600 BCE" to "5000-1700 BCE"; medium changed from "jade" to "jade (nephrite)".
3. (Najiba Choudhury per Keith Wilson, December 7, 2018) Period changed from "Late Neolithic period or early Shang dynasty" to "Late Neolithic period"; date changed from "ca. 1600-ca. 1300 BCE" to "ca. 2000-1600 BCE"; geography changed from "probably Henan province, China" to "China"; added Chinese translation by Jingmin Zhang, and unpublished research by Jenny F. So.
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