| 1604 | Mount Desert Island discovered and
named by Samuel de Champlain, September 5. |
| 1688 | Island granted to Antoine de la Mothe
Cadillac by Louis XIV. |
| 1762 | Island given by Massachusetts to Sir
Francis Bernard, Governor of Massachusetts; later, eastern half granted
to M. and Mme. de Gregoire, western half to John Bernard. |
| 1855 | First "summer visitors" recorded as
vacationing on Mount Desert Island. |
| 1868 | Steamboat service from Boston
begun. |
| 1888 | Scenic railway built from shore of
Eagle Lake to summit of Cadillac Mountain. |
| 1901 | Charter granted to Hancock County
Trustees of Public Reservations to acquire and hold in public interest
land on Mount Desert Island. |
| 1908 | First gift of land to trustees;
donated by Mrs. Eliza Homans of Boston. |
| 1914 | 5,000 acres of land on island tendered
to Government as a national park by Hancock County Trustees. |
| 1916 | Tract accepted by Government;
proclaimed by President Wilson to be the Sieur de Monts National
Monument. |
| 1919 | Act of Congress, February 26, created
Lafayette National Park, first national park east of the Mississippi
River. |
| 1927 | Jordan Pond Road opened to travel. |
| 1929 | Park name changed to Acadia; Schoodic
Peninsula added to park. |
| 1931 | Cadillac Mountain Summit Road
completed. |
| 1935 | Schoodic Peninsula and Wonsqueak
Harbor Roads completed. Schoodic Naval Radio Station completed and
commissioned. |