Manifest Destiny was used by John L. O’Sullivan as an expression of territorial expansion. It started on an Anglo-Saxon goal to spread their civilization on North America.
Beginning in the early 1870s, railroad construction in the United States increased dramatically. Prior to 1871, approximately 45,000 miles of track had been laid. Between 1871 and 1900, another 170,000 miles were added to the nation's growing railroad system. Much of the growth can be attributed to the building of the transcontinental railroads. In 1862, Congress passed the Pacific Railway Act, which authorized the construction of a transcontinental railroad.
North of where? caspian sea actualy is the largest salt lake in the world that located on middle-east, asia (north of Iran (known as Persia), South of Russia). Mediterranean sea approximately located on the north of Africa continent and south of Europe continent.
