An ancient tomb site is unearthed in Tianjin's Jizhou district. The site in the city's northern suburb contains relics dating back to the Xia (2,070-1,600 BC) and Shang (1,600-1,046 BC) dynasties, according to the Tianjin Cultural Heritage Center on June 19. [Wen Qiang/For China Daily]

The ancient tomb site in a Tianjin suburb contains relics from some of China's earliest dynasties on June 19. [Wen Qiang/For China Daily]

A researcher at the Tianjin Cultural Heritage Center examines relics unearthed at the ancient tomb site on June 19. [Wen Qiang/For China Daily]

The relics unearthed at an ancient tomb sites in Jizhou in Tianjin are separated into bins on June 19. [Wen Qiang/For China Daily]

Skeletons are among the relics discovered in an ancient tomb site unearthed in Jizhou district, Tianjin on June 19. [Wen Qiang/For China Daily]

Human skulls are among the remains uncovered at an ancient burial site in a Tianjin suburb on June 19. [Wen Qiang/For China Daily]