A reanalysis of ancient DNA shows that a major cultural change took place in Ireland after four centuries of farming.

In the mid-1990s, Lorie Hanson attended a meeting at the life company she worked for at the time. A client had flown in for the occasion, and she and her colleagues gathered in a large conference room ...

and confidently expected eager buyers to snap up a Louis XII carved walnut dresser ($269), a pair of carved 17th-Century Italian stone urns ($598), a suit of 16th-Century Pisan armor ($2,397), Van ...