Chartered in Pennsylvania in 1846, construction of the Pennsylvania Railroad began in 1847, and the first all-rail line reached Pittsburgh in 1852. Eventually, PRR connected Chicago with Washington, D.C. Pennsylvania Railroad recalls the unique engines and trains of 'The Standard Railroad of the World.' (14 × 22 inches, open). Tide-mark press has been publishing quality calendars for over 35 years. Search for these 12 Tide-mark train calendars: Baltimore & Ohio Colorado Narrow Guage Great Northern Railway Great Trains Howard Fogg Milwaukee Road Pennsylvania Railroad Railroading! Remarkable Steam Trains Santa Fe Shortline Railroads Union Pacific