<P> The palatial centers organized their workforce and resources for the construction of large scale projects in the fields of agriculture and industry . The magnitude of some projects indicates that this was the result of combined efforts from multiple palatial centers . Most notable of them are the drainage system of the Kopais basin in Boeotia, the building of a large dam outside Tiryns, and the drainage of the swamp in the Nemea valley . Also noticeable is the construction of harbors, such as the harbor of Pylos, that were capable of accommodating large Bronze Age era vessels like the one found at Uluburun . The Mycenaean economy also featured large - scale manufacturing as testified by the extent of workshop complexes that have been discovered, the largest known to date being the recent ceramic and hydraulic installations found in Euonymeia, next to Athens, that produced tableware, textiles, sails, and ropes for export and shipbuilding . </P> <P> The most famous project of the Mycenaean era was the network of roads in the Peloponnese . This appears to have facilitated the speedy deployment of troops--for example, the remnants of a Mycenaean road, along with what appears to have been a Mycenaean defensive wall on the Isthmus of Corinth . The Mycenaean era saw the zenith of infrastructure engineering in Greece, and this appears not to have been limited to the Argive plain . </P> <P> Trade over vast areas of the Mediterranean was essential for the economy of Mycenaean Greece . The Mycenaean palaces imported raw materials, such as metals, ivory and glass, and exported processed commodities and objects made from these materials, in addition to local products: oil, perfume, wine, wool and pottery . International trade of that time was not only conducted by palatial emissaries but also by independent merchants . </P> <P> Based on archaeological findings in the Middle East, in particular physical artifacts, textual references, inscriptions and wall paintings, it appears that Mycenaean Greeks achieved strong commercial and cultural interaction with most of the Bronze Age people living in this region: Canaanites, Kassites, Mitanni, Assyrians, and Egyptians . The 14th century Uluburun shipwreck, off the coast of southern Anatolia, displays the established trade routes that supplied the Mycenaeans with all the raw materials and items that the economy of Mycenaean Greece needed, such as copper and tin for the production of bronze products . A chief export of the Mycenaeans was olive oil, which was a multi-purpose product . </P>

The form of political organization based on city states was the