In MY opinion the most important transportation invention was the train.
The Land and Its Early People. Prehistory – 1519.
Age of Contact. 1519-1689.
Spanish Colonial. 1689-1821.
Mexican Rule. 1821-1835.
Revolution and Republic. 1836-1845.
Early Statehood. 1845-1861.
Civil War and Reconstruction. 1861-1870.
Cotton, Cattle, and Railroads. 1850-1901.
It is the A and if you have any doubts do not hesitate to consult it.
Answer:
you not give me full question so I'm not sure
