The Dewey Decimal Classification System is the most widely used method for classifying books in the library. This system is a general knowledge organization tool that is continuously revised to keep pace with knowledge. It is named after Melvil Dewey, an American Librarian who developed it in 1876.
The New South Wales Government then invited worldwide tenders for the construction of the Bridge in 1922 and the contract was let to English firm Dorman Long and Co of Middlesbrough. The Sydney Harbour Bridge construction started in 1924 and took 1,400 men eight years to build at a cost of 4.2 million.Six million hand driven rivets and 53,000 tonnes of steel were used in its construction.lthough the Tyne Bridge was opened in 1928 â four years before the Harbour Bridge was opened â the tender was submitted and contract signed for the Sydney Harbour Bridge in March 1924.
Sydney Harbour Bridge is the main bridge that connects the North  Shore and the business district in Sydney, New South Wales,  Australia. It crosses Sydney Harbour from Mill â¦ ers Point on one  side, to Milsons Point on the other side.    It was opened on 19 March 1932.    See related link for a webcam.