This article lists events related to rail transport that occurred in 1851.
February 4 - The Cincinnati, Wilmington and Zanesville Railroad is incorporated in Ohio.
February 7 - the Chicago & Rock Island Railroad, the earliest predecessor of the Chicago, Rock Island and Pacific Railroad, is incorporated.
February 10 - The Illinois Central Railroad is chartered.
February 25 - the first passenger train on the Milwaukee Road operates over what is then known as the Milwaukee and Mississippi Railroad between Milwaukee, Wisconsin, and Wauwatosa, Wisconsin.
April 19 - The Albany and Susquehanna Railroad, in New York state, is chartered.
May 17 – Opening of first railway in Peru, linking the Pacific port of Callao and the capital Lima (13.7 km (8.5 mi) of standard gauge), later part of the Ferrocarril del Centro.
June - The first "refrigerated boxcar" enters service on the Northern Railroad (New York).
July 4 - Groundbreaking ceremonies are held for the Pacific Railroad Company, a railroad later to become the Missouri Pacific Railroad
August 2 – The Staten Island Railway is incorporated.
December 22 - The first railway operates in India, hauling construction material in Roorkee.
December 25 - Opening of first railway in Chile, from Caldera to Copiapó (80.5 km (50.0 mi) of standard gauge climbing (396 m (1,299 ft)).
The oldest line to become a part of the Southern Pacific Railroad system, the Buffalo Bayou, Brazos and Colorado Railway begins construction between Houston, Texas, and Alleyton, Texas.
The Mohawk and Hudson Railroad changes its name to the Mohawk Valley Railroad.
March 1 – Edward Ponsonby, director for London, Brighton and South Coast Railway beginning in 1895 and chairman of same 1908–1920, is born (died 1920).
June 24 - Stuyvesant Fish, president of the Illinois Central Railroad 1887–1907 (died 1923).
September 16 - Henry Ivatt, Chief Mechanical Engineer of the Great Northern Railway (Great Britain) 1896–1911 (died 1923).
1851 in rail transport Wikipedia (Text) CC BY-SA