The Natal Registry · Writing
Mas Oyamaborn under Mercury retrograde
Korean-Japanese full-contact karate master, the founder of Kyokushin (1922-1994) — born June 4, 1923, while Mercury traced its backward loop through Gemini.
BornJune 4, 1923(1923–1994)♊︎☿ Rx in Gemini · 3°30′Rx windowMay 17 – Jun 10, 1923
✶Astrological tradition — for entertainment, not astronomy
Tradition reads a natal Mercury retrograde as the inward mind — drafted, revised, doubled back — and gives it a air-sign keynote in Gemini: Your ruler stumbles; messages misfire most of all.
Shares a retrograde sign with
Born inside the very same window
Coincidence, not causation: the birthday and the window are real and ephemeris-based; the reading is tradition, offered in good fun.