Seine River Steamers early vessels meant that positive traction by pulling on a chain against a deadman or anchor was much more effective. In the 1830s river travel was considered dangerous, so much so that insurers would put a 25 percent premium on cargoes and vessels travelling the route. The Seine is divided into three sections, the lower or Oise section, middle or Paris Section, and upper or Marne section. Ships enter the river at Le Havre through a bad tidal bore. (Victor Hugo's favourite daughter was killed while travelling in a small boat across the bore.) Oceangoing ships can travel to Rouen,
History of the Port of Tianjin 1318 the first recorded aid to navigation in the region was established in the Longwangmiao temple at the Haihe mouth. During daytime, white cloth flags were raised on high poles. At night, lamps were lit and raised to guide approaching boats. Activity diminished with fall of the Yuan and the move of the capital to Nanjing. The port of Zhigu was renamed "Tianjin" ("Ford of the Emperor") in 1400 by the Yongle Emperor, to commemorate a victorious forced river crossing. Yongle's move of the imperial capital back to Beijing in 1405 renewed Tianjin’s importance as a grain hub. Soon, the