This document provides an overview of nation-building efforts in the Americas between the late 18th century and mid-19th century. It describes how Latin American countries gained independence from European rule, through leaders like Bolivar and San Martin, leading to the end of European dominance by 1824. It also outlines the expansion and strengthening of the United States through territorial growth, wars, and political and economic developments, until tensions over slavery erupted into the American Civil War in 1861.