The period from roughly 1200 to 1450, the starting point of this AP World History: Modern curriculum, is generally characterized by historians as a period in which:
- **A)** A wide range of distinct, regionally-varied political, religious, and social structures had developed across different world regions, each shaped significantly by that specific region's own particular historical, geographic, and cultural circumstances - this unit surveys several of these significant regional civilizations and societies (including societies in East Asia, the Islamic world, Sub-Saharan Africa, the Americas, and medieval Europe) as they existed during this specific period, prior to the more extensive global interconnection that would develop in subsequent periods covered later in this curriculum
- **B)** A single, entirely uniform political and social structure had already developed and spread identically across every world region, with no meaningful regional variation of any kind existing anywhere during this specific period
- **C)** This period had no meaningful, describable relationship to regional political, religious, or social diversity, or to the broader comparative civilizational survey this unit undertakes
- **D)** Every world region during this period had already achieved full, extensive direct political and economic interconnection with every other world region, a characterization that inaccurately overstates the degree of global interconnection that had actually developed by this comparatively early period, prior to the more extensive interregional networks discussed in the subsequent unit of this curriculum
This period is generally characterized by a wide range of distinct, regionally-varied political, religious, and social structures across different world regions, each shaped significantly by that region's own particular historical and cultural circumstances. This unit surveys several significant regional civilizations, including societies in East Asia, the Islamic world, Sub-Saharan Africa, the Americas, and medieval Europe, as they existed during this specific period.