| | New Haven Railroad Historical Events |
| | Date | | Category | | Event |
| | 7/17/1868 | | Incorporation | CONNECTICUT VALLEY RAILROAD COMPANY incorporated in Connecticut, with authority to construct a railroad |
| | from Hartford to Long Island Sound at Westbrook, Clinton or Old Saybrook. (Company organized October 2, 1869.) |
| | 7/18/1868 | | Opening of Service | HANOVER BRANCH RAILROAD opened, Abington to Hanover, 7.8 miles. |
| | 7/28/1868 | | Sale | CAPE COD CENTRAL RAILROAD COMPANY deeded to CAPE COD RAILROAD COMPANY. |
| | 7/1/1869 | | Merger | FITCHBURG & WORCESTER RAILROAD COMPANY consolidated with BOSTON, CLINTON & FITCHBURG |
| | RAILROAD COMPANY under name of latter company. |
| | 7/1/1870 | | Opening of Service | DANBURY & NORWALK RAILROAD opened, Ridgefield to Branchville, 3.97 miles. |
| | 7/6/1871 | | Incorporation | CONNECTICUT CENTRAL RAILROAD COMPANY incorporated in Connecticut. Constructed a railroad from the |
| | Hartford. Providence & Fishkill at East Hartford to the Massachusetts line, 20.25 miles, to connect with the Springfield & |
| | New London Railroad; also a branch from Melrose to West Street, Rockvllle, 7 miles, connecting with the Rockville |
| | Railroad. (Company organized February 3, 1873.) |
| | 7/26/1871 | | Incorporation | THE NEW YORK, NEW HAVEN AND HARTFORD RAILROAD COMPANY incorporated in Connecticut, for the |
| | purpose of consolidating the HARTFORD & NEW HAVEN RAILROAD COMPANY and the NEW YORK & NEW |
| | HAVEN RAILROAD COMPANY. |
| | 7/29/1871 | | Opening of Service | The Connecticut Valley Railroad - Service begins between Hartford (State St) and Saybrook Point. Line would later become |
| | the Valley Division of the NYNH&H. |
| | 7/31/1871 | | Opening of Service | DUXBURY & COHASSET RAILROAD opened from Greenbush to Marshfield. |
| | 7/1/1872 | | Opening of Service | DANBURY & NORWALK branch, Hawleyville to Bethel opened, 6 miles. |
| | 7/1/1872 | | Opening of Service | CONNECTICUT VALLEY RAILROAD opened, Saybrook Point to Fenwick. |
| | 7/24/1872 | | Milestone | William Darius Bishop is elected the first President of the newly formed New York, New Haven & Hartford Railroad |
| | Company, which merged the New York & New Haven, and Hartford & New Haven Railroads. |
| | 7/1/1873 | | Opening of Service | NEW BEDFORD RAILROAD opened, New Bedford (Wamsutta Street) to Steamboat Wharf, about 1 mile. |
| | 7/23/1873 | | Opening of Service | OLD COLONY RAILROAD COMPANY completed the extension from Wellfleet to Provincetown, about 14.3 miles. |
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