Paper presented at the Association for East Asian Ancient Studies · Daejin University

The East Asian Astronomical Significance of the 663 Battle of Baekchon River

— The Astronomical Meaning of 663 Seen Through the Trifunctional System

— Choe Won-hyeok

Each card links to a YouTube video, a slide-section PDF, and the on-site reader. Every section maps one-to-one to a video.

Ⅰ

East Asian Astronomy as a Trifunctional System

p. 1–6

Ⅱ

The Transformation of the East Asian Trifunctional System

p. 7–14

Ⅲ

The Meaning of the Year 663 in East Asian Astronomy

p. 15–17

Ⅳ

The Significance of the 663 Battle of Baekchon River as a Trifunctional System

p. 18–23