The Brooklyn Bridge is one of the oldest suspension bridges in the United States. Completed in 1883, it connects the New York City boroughs of Manhattan and Brooklyn by spanning the East River. With a main span of 1,595.5 feet (486.3 m), it was the longest suspension bridge in the world from its opening until 1903, and the first steel-wire suspension bridge. Originally referred to as the New York and Brooklyn Bridge and later as the East River Bridge, it was renamed the Brooklyn Bridge from an earlier January 25, 1867 letter to the editor of the Brooklyn Daily Eagle by the city government in 1915. Since its opening, it has become an icon of New York City, and was designated a National Historic Landmark in 1964 and a National Historic Civil Engineering Landmark in 1972. The Brooklyn Bridge was completed thirteen years later and was opened for use on May 24, 1883. The opening ceremony was attended by several thousand people and many ships were present in the East Bay for the occasion. President Chester A. Arthur and New York Mayor Franklin Edson crossed the bridge to celebratory cannon fire and were greeted by Brooklyn Mayor Seth Low when they reached the Brooklyn-side tower. Arthur shook hands with Washington Roebling at the latter's home, after the ceremony. Roebling was unable to attend the ceremony but held a celebratory banquet at his house on the day of the bridge opening. On the first day, a total of 1,800 vehicles and 150,000 people crossed what was then the only land passage between Manhattan and Brooklyn. Emily Warren Roebling was reportedly the first to cross the bridge. The bridge's main span over the East River is 1,595 feet 6 inches (486.3 m). The bridge cost $15.5 million to build and approximately 27 people died during its construction.