Today marked 100 years of PATH service connecting Manhattan and New Jersey through tubes under the Hudson River. Devised as a service to connect passengers arriving on the banks of the Hudson River with destinations in Manhattan, the original Hudson and Manhattan Railroad linked up with terminus stations of the Lackawanna, Erie and Pennsylvania railroads. In 1962, the Port Authority took over from the H&M Railroad, rechristening the tubes as the PATH system. The NYTimes has some interesting images from the history of the system.

Fares today were free, but the reprieve is short lived with one way trips jumping to $1.75 on March 2. More infuriating though is that Port Authority is now pushing their Smart Card system, a payment method incompatible with the MTA Metrocards. Riders can get free Smart Cards today at the PATH stations, but otherwise will need to pay $5 for the privilege. MTA pay-per-ride Metrocards will continue to work, but Smart Card riders enjoy a greater discount on fares.