Broom Bridge, also known as Brougham Bridge, is a small bridge along Broombridge Road which crosses the Royal Canal in Cabra, Dublin, Ireland. Broom Bridge is named after William Broughamm, one of the directors of the Royal Canal company. It is somewhat famous for being the location where Sir William Rowan Hamilton first wrote down the fundamental formula for quaternions on October 16, 1843.
Royal Canal, Cabra, Co. Dublin