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.
In general, the driving forces behind the creation of stage lines were: mail delivery, the function of federal, state and county governments, and passenger service. Stagecoaching began in Iowa about 1838, flourished in the 1850's, and lasted until about 1874 when railroads and roads were well established. For a period in the 1850's through 1870's the stagecoach lines conducted business in conjunction with the railroads. In 1854, the Western Stage Company became the largest line in the State of Iowa when it purchased the interests in another major competitor. The Western Stage Company operated nearly all the stage traffic on approximately 14 routes originating from Iowa City.