http://news.nationalgeographic.com/news … offin.html


Article wrote:
The coffin dates to Egypt's Middle Kingdom era, though the cemetery is better known for its use during the New Kingdom, 1550 to 1070 B.C.
Based on the coffin's inscriptions and pottery found near it, experts date the burial to the early reign of the 11th dynasty, which lasted from 2125 to 1985 B.C. Soldiers played an important role in society during that time, when Egypt was reunified after years of civil war.