a place of historical or archaeological importance; historic ruins; the remains of a previous civilization / land or position left by one who passes away; also, the person who inherits such

Harappa (archaeological site)

civilization

one thing

important, significant

importance, consequence, significance

"civilization and enlightenment" (Meiji-era adoption of Western thinking)

importance

first, initial / one-eyed

one-eyed goblin, a Japanese monster