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.
Passenger service began on March 25, 1807, making it the first passenger railway in the world. Passenger service lasted nearly 20 years, ending in 1826 when horse-powered buses on an adjacent road stole much of the railroad's traffic.