Ken Burns has been making documentary films for almost 40 years ... Frank Lloyd Wright; Mark Twain; Unforgivable Blackness: The Rise and Fall of Jack Johnson; The War; The National Parks: America ...

Samuel Clemens, who was known as Mark Twain, was born in Missouri in 1835 — the year of Haley's Comet, and vowed he would live to see the comet pass over again. Indeed, Twain died in 1910 ...