Tartary; Tatars
Historical term referring to various nomadic tribes that lived in the region north of China, often used in pre-modern contexts.
Tartary is a historical name for the region that once stretched north of China.
Marco Polo's travelogue contains descriptions of Tartary.
Standard kanji spelling for the historical region and peoples.
From Chinese 韃靼 (Dádá), a historical name for the Tatar tribes. The Japanese reading だったん is derived from the Chinese pronunciation.