Lost to time: unforgettable stories that history forgot

Ziryab : the slave who changed society (ninth century)

Cahokia : the forgotten Rome of the Americas (twelfth century)

Gil Eanes : conquering the point of no return

Joseph Warren : architect of a revolution (1741-75)

Outdoing Revere : history's forgotten riders

Elisha Kent Kane : America's greatest hero (1847-57)

The sultana : death on the Great River

America's first subway : secret under Broadway

Peshtigo : great fire in the forest

Gustave Whitehead : the first to fly

Exercise Tiger : a rehearsal for D-day.