A close-up of a stele found at Poggio Colla, a site of religious ritual for the ancient Etruscans.

The 500-pound stone slab, or stele, was unearthed earlier this year at Poggio Colla, a sixth century B.C.

The stele bears a long inscription in a language that has not been used for 2,500 years, project archaeologist Gregory Warden, a professor emeritus at Southern Methodist University in Dallas, told Live Science in April.

Now, translation is underway and archaeologists have discovered that the tablet references the goddess Uni.

Photos: The Tomb of an Etruscan Prince

"We can at this point affirm that this discovery is one of the most important Etruscan discoveries of the last few decades," Warden said in a statement.

The text above is a summary, you can read full article here.