Maine whose sinking by an explosion on February 15, 1898 precipitated the Spanish–American War. To the south and east is the Atlantic Ocean and to the north and northeast is New Brunswick, a province of Canada. The Canadian province of Quebec is to the northwest. Maine is both the northernmost state in New England and the largest, accounting for almost half the region's entire land area. Maine is the only state to border exactly one other state (New Hampshire to the west). Maine is the easternmost state in the United States in both its extreme points and its geographic center. The
USS Maine (ACR-1) later that year. While the sinking of "Maine" was not a direct cause for action, it served as a catalyst, accelerating the approach to a diplomatic impasse between the U.S. and Spain. The cause of "Maine"s sinking remains a subject of speculation. In 1898, an investigation of the explosion was carried out by a naval board appointed under the McKinley Administration. The consensus of the board was that "Maine" was destroyed by an external explosion from a mine. However, the validity of this investigation has been challenged. George W. Melville, a chief engineer in the Navy, proposed that a more