Transportation

On September 12, 1862, the Civil War Battle for Harpers Ferry began. 

On June 15, 1942, the Post Office Department inaugurated its V-Mail service.  During World War II, letters bound for service personnel were photographed and transferred to microfilm.  This special process enabled letters to take up a fraction of their usual space on planes going to war zones, allowing more room for crucial supplies. 

On May 12, 1984, the Louisiana World Exposition opened its gates.

On April 7, 1856, the SS Adriatic was launched.

On April 4, 1968, the USPS issued a $1 stamp that, when combined with a parcel post stamp, was used to send mail and packages to American service members overseas.

On March 18, 1855, the Niagara Railway Suspension Bridge officially opened.

On March 10, 1804, the US flag was raised over St. Louis, marking the completion of the Louisiana Purchase.  This day, along with March 9, is known as Three Flags Day.

On March 3, 1845, a congressional act established star routes.  Businesses would carry mail under contract with the post office on these postal routes.

On February 2, 1925, a sled dog team took the Iditarod Trail to deliver a much-needed diphtheria antitoxin to Nome, Alaska, following a deadly outbreak.