The D&D campaign uses a wide variety of unfamiliar, archaic units of measure with which most players are unfamiliar. Units that are used in Alexis' World are defined and compared below, for the benefit of players in that world. These correspond to common measurements in the 17th century, the approximate time of Alexis' campaign as it relates to Earth's history. Therefore, these measurements are "imperial" in nature and not metric. Metric equivalents are not given, since they would not exist in the minds of characters at the time; additionally, there is something to be said for requiring the player's minds to think in measuring objects in the same way that people did once upon a time. Units are divided according to what is measured.