The bronze mirror is still shiny after 1,900 years underground

The mirror of the Late Han Dynasty was preserved so intact that it could illuminate people after 1,900 years .

The 11.3-cm copper mirror was unearthed in April at Nakashima archaeological site in Fukuoka City, Japan, the International Business Times reported. According to the city authorities, this artifact was crafted in the Later Han Dynasty (year 25 - 220) and preserved intact to an incredible extent.

Bronze mirror 1900 years old.(Photo: AFP).

Such long-standing copper mirrors are often cracked or covered with copper, but the mirror is in such good condition that it still looms over the dim figure, according to the Asahi Shimbun. Researchers speculate that damp air around the site may have prevented the mirror from oxidizing.

The mirror is classified as a mirror with an arched edge connected by decorative motifs. The research team also found the inscription "Truong Nghi Tu Ton" means "descendants of eternal harmony" . In addition to the mirror, they found the last produced earthenware of the Yayoi period (from 300 BC to 300). The earthenware is located in the gallery of Fukuoka City Museum.

Scientists do not know the exact purpose of use, but Hidenori Okamura, a professor of archeology at Kyoto University, speculated that the mirror could serve anciently based on location.