trains
The Underground Railroad
George Westington had 361 patents over his coarse of life, many of which helped the growth of electricity,with the use of power and transportation, and the railroad system. All his inventions benefited the industry as a whole
the river system
technologies might help later on like the system in cuniform and on the rules and laws
Railroads played no more than a secondary role in the nations transportation system in the 1820's-30's. Railroads became the primary transportation system of the United States and they remained so until the constriction of the interstate highway system in the mid twenth century. It emerged from a combination of technological and entrepreneurial innovations, included inventions of tracks, steam power locomotives and developement of railroad cars.
Underground Railroad
The Underground Railroad
George Westington had 361 patents over his coarse of life, many of which helped the growth of electricity,with the use of power and transportation, and the railroad system. All his inventions benefited the industry as a whole
the river system
the river system
Plow and irrigation system
Many people did so, from Stephenson to Brunel
In the US it was called the Underground Railroad
The Underground Railroad was the name given to the system by which escaped slaves from the South were helped in their flight to the North. It is believed that the system started in 1787. The Underground Railroad was at its height between 1850 and 1860.
D.It was a secret system which helped slaves escape to reedom.
Yes, they used a system of safe-houses to help them escape into Canada.
Harriet Tubman; Underground Railroad.