An ounce is a unit of weight which is approximately equal to 28  grams. One gallon is equal to 128 ounces so there are 640 ounces in  5 gallons of water.
The first U.S. railroad to use a steam locomotive in revenue service was the South Carolina Railroad. It opened on Christmas Day 1830 using the Best Friend of Charleston steam locomotive on six miles of track in Charleston, South Carolina.
Work on the first transcontinental railroad began after President Abraham Lincoln approved the Pacific Railway Act of 1862, a landmark law that authorized the federal government to financially back the construction of a transcontinental railroad.Due to the American Civil War, work was delayed for several years.ork on the first transcontinental railroad began after President Abraham Lincoln approved the Pacific Railway Act of 1862, a landmark law that authorized the federal government to financially back the construction of a transcontinental railroad.