The Hawaiʻi State Library is a historic building in Honolulu, Hawaii that serves as the seat of the Hawaiʻi State Public Library System, the only statewide library system and one of the largest in the United States. The Hawaiʻi State Library building is located in downtown Honolulu adjacent to ʻIolani Palace and the Hawaiʻi State Capitol. Originally funded by Andrew Carnegie, the building was designed by architect Henry D. Whitfield. Groundbreaking took place in 1911 and construction was completed in 1913. In 1978, the building was added to the National Register of Historic Places, as a contributing property within the Hawaii Capital Historic District.

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