In February 1867, seven thousand feet up in the freezing darkness of the Sierra Nevada, crews inside Summit Tunnel No. 6 were battering their way through solid blue granite at the agonizing rate of seven inches a day—while outside, the "Winter of 44 Blizzards" buried entire camps under forty feet of snow and a Scottish chemist named James Howden brewed unstable liquid nitroglycerin by hand in open wooden tubs.In Season 1, Episode 7 of American Tapestry, pull up a chair by the hearth for the epic true story of the Transcontinental Railroad (1863–1869)—the six-year war against geography that bound a fractured republic together in iron and blood.In this episode, we explore:• "Crazy Judah" & The Impossible Survey (1860–1863): How obsessed civil engineer Theodore Dehone Judah and Dutch Flat druggist Daniel Strong mapped a continuous grade up the sheer granite spine of Donner Pass, pitched four skeptical Sacramento shopkeepers—Collis Huntington, Leland Stanford, Mark Hopkins, and Charles Crocker—above a hardware store at 54 K Street, and secured Abraham Lincoln’s signature on the Pacific Railway Act of 1862 in the darkest summer of the Civil War.• The Wall of Granite & Cape Horn (1865–1866): Facing a crippled labor force in California, one-eyed construction boss James Harvey Strobridge reluctantly hired fifty Chinese laborers—who soon grew into a disciplined army of twelve to fifteen thousand men from Guangdong Province, carving the narrow ledge around Cape Horn 1,300 feet above the sheer American River canyon.• Summit Tunnel No. 6, Liquid Nitroglycerin & The Winter of 44 Blizzards (1866–1868): Sinking a 73-foot vertical shaft into the center of the 1,659-foot Summit Tunnel powered by a Sacramento riverboat engine; chewing through four feet of granite a day with volatile liquid nitroglycerin; surviving deadly avalanches at Camp 4; and framing 37 miles of timber snowsheds—"The Longest Barn in the World."• "Hell on Wheels" & The Ten-Mile Day Wager (1868–April 28, 1869): General Grenville Dodge and Jack Casement’s Union Pacific army of Civil War veterans and Irish graders racing west across the Plains; rival grading crews blasting rock onto each other’s parallel beds in Utah; and the legendary April 28, 1869 wager at Victory, Utah, where eight Irish rail handlers—Michael Shay, Michael Kennedy, Michael Sullivan, Patrick Joyce, Thomas Dailey, George Wyatt, Edward Killeen, and Fred McNamara—and four thousand Chinese workers laid 10 miles and 56 feet of track (4.3 million pounds of iron, wood, and spikes) in a single twelve-hour shift.• The Telegraph Click Heard Round the Nation (May 10, 1869 – Today): Central Pacific’s Jupiter (No. 60) and Union Pacific’s No. 119 meeting cowcatcher to cowcatcher at Promontory Summit, the single word "DONE" flashed coast to coast, and where you can still walk through the dark granite bore of Summit Tunnel No. 6 on Old Donner Pass Road today.Subscribe to American Tapestry, leave a review, and tell us whose legend we should cover next!