Death Note (Object) - Giant Bomb

A book which causes the death of anyone whose name is written in it. The central object of the Death Note anime belonged to the Shinigami Ryuuk, and was dropped in Japan and found by Yagami Light.

Why did the atomic bomb dropped on Hiroshima leave shadows of people etched on sidewalks?

Objects of Intrigue: The Atomic Bomb Toy - Atlas Obscura

How Will the Universe End?

Death Note (Franchise) - Giant Bomb

Manga Timeline, Death Note Wiki

ARMA - Kaijumatic

Truman Was Right to Drop the Atomic Bomb

Daughter

Hiroshima after 75 years: Walking the path of the atomic bomb