the right to govern, sovereignty

Edo River / Edogawa (one of 23 special wards in Tokyo prefecture, Japan) / a surname

A true Tokyoite: one who was born and raised in the Japanese capital and whose parents are from Tokyo. One whose family has been from Tokyo for generations.

(calligraphy and typography) "Edo characters", distinctive calligraphic (and later, typographic) styles that were born in the Edo period

a tatami mat of the Edo (Tokyo) style

period drama

a historical period where social disorder is so great due to war, disease, political disorder etc. that there is little or no cultural development; Dark Ages

anachronism

youth (part of life following childhood)

zeitgeist (the spirit of the age)