Adventures in the Ancient World (Hellas Supplement)
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War in the Ancient World was generally waged in one of three ways: either by slightly-trained members of the free, but landed, classes, as in Greece; by slaves, as in Persia; or, rarely, by a trained and standing army, as in later Imperial Rome. Most battle occurred with lines of armored fighters using spears, though cavalry and chariot warfare did exist. The most common weapon was the long spear, though these weapons were also common:
Transportation in the Ancient World was traditionally very difficult. Sea transportation was significantly less dangerous than land travel. Travel costs by sea are generally two times more expensive than listed in the Player's Handbook, while land travel is fraught with peril (brigands, lawless territory between cities, wandering monsters, etc.). Thus, the Mediterranean Sea is key to the spread and survival of civilization, and nearly all culture exists along the sea or its large tributary rivers.
Because of this, navel prowess is very important. Seafaring is an important mode of transportation, so it is recommended that at least one member of any adventuring party have ranks in Profession (Sailor). Further, the purchase price of boats might become very important to a group of adventurers looking for independence.