British archaeologists in Turkey are uncovering a massive 450km long aqueduct built to serve Constantinople, the capital of Rome's Eastern Empire. The aqueduct, constructed between AD 355 and 440, was capable of serving a population of 500,000 with 130M litres of water a day. The Roman engineers achieved an average gradient of one in 16,666 for the main part of the system, and a dozen multi-tier aqueduct bridges between 25m and 34m have been located.
Ten people were crushed to death when crowds trying to leave a fireworks show in southern Japan jammed a bridge. Crowds from among the 130,000 people viewing the display on the seafront in Akashi forced a pile up on the 6m wide bridge.