Though first seen only as an expensive luxury, Alexander Graham Bell's telephone soon transformed American life and became a necessity.
Two days in 1967 revealed a nation divided over a war that continues to haunt us.
The decisions made by leaders and the escalation of bloodletting that finally ended World War II.
The story of the polio crusade pays tribute to a time when Americans banded together to conquer a terrible disease.
A look at five real-life "Rosies," the reality of working in defense plants during World War II and then having to give up those jobs for returning GIs.
The story of the dramatic post-World War II tribunal that brought Nazi leaders to justice and defines trial procedure for state criminals to this day.
From the Revolutionary War to Operation Desert Storm - newly discovered letters read by celebrity actors tell of courage, longing, and sacrifice.
With the clock ticking and the city under fire how many could be saved?