Examination of the amatl showed chemical traces written in a previously unknown script.
Tianeptine is an effective antidepressant with a previously unknown mechanism of action.
That bestselling novel put the previously unknown writer on the literary map.
This also helps generate lists of previously unknown suspects or targets.
This was the Strait of Georgia, which was previously unknown to Europeans.
And dozens of previously unknown objects have been discovered.
The declassified documents brought to light previously unknown aspects of the war.
Several previously unknown details about the artist's life have recently come to light.
The deep diving conducted by the researchers uncovered previously unknown species in the region.
They pushed the autobahn construction in a previously unknown manner.
The gallery released a new catalogue raisonné that includes previously unknown sketches.
The field of textual scholarship often uncovers previously unknown manuscripts.
Their thalassic expedition revealed new species previously unknown to science.