Period 4 (1800-1848)

Key Concept 4.1: The United States developed the world’s first modern mass democracy and celebrated a new national culture, while Americans sought to define the nation’s democratic ideals and to reform its institutions to match them.

Key Concept 4.2: Developments in technology, agriculture, and commerce precipitated profound changes in U.S. settlement patterns, regional identities, gender and family relations, political power, and distribution of consumer goods.

Key Concept 4.3: U.S. interest in increasing foreign trade, expanding its national borders, and isolating itself from European conflicts shaped the nation’s foreign policy and spurred government and private initiatives.