What does Schliemann unearth during his dig in Turkey in 1866 as noted in the biography, The Walls of Windy Troy?

In 1866, Schliemann goes to Turkey, where he digs for the site of ancient Troy. He hypothesizes that the city lies near the village of Hissarlik, and he succeeds in unearthing layer upon layer of settlements, dating back to the Bronze Age.