By 2500 BC, the indians advanced ship design by building the very first tidal docks. This were rectangular work areas where a ship coule be parked or docked while it was being built or needed repairs. This second phase of ship design helped speed up the production of shipbuilding. Tidal dock technology woule be copied by all major naval powers in the coming centuries.Large ship design continued during the Egyptian, Roman, insian and Chinese Empires