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

(colloquial) current boyfriend

everything

(slang) Alternative form of 彼氏 (kareshi, “boyfriend”)

everyone, one and all

(history) the Nara period (710 - 794 CE)

an ice age (period of glaciation at the poles)

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

zeitgeist (the spirit of the age)

Age of Enlightenment (period of history)