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.
California was of urgent concern because it was threatening to secede. When Lincoln signed the authorization allowing the Central Pacific Railroad to build east from Sacramento, California (and the Union Pacific to build west from the Missouri River), the errant state was very involved in the idea of a united country.onnecting the country was challenging. The first American railroad to carry passengers and freight was the Baltimore and Ohio, chartered in Maryland in 1827. At midcentury, the federal government began granting land to certain railroads in exchange for reduced carriage charges for government use.