Ken Burns's two-part, four-hour documentary, Benjamin Franklin, explores the revolutionary life of one of the 18th Century's most consequential and compelling personalities, whose work and words unlocked the mystery of electricity and helped create the United States. Franklin's 84 years (1706-1790) spanned an epoch of momentous change in science, technology, literature, politics, and government — fields he himself advanced through a lifelong commitment to societal and self-improvement.