This interdisciplinary unit helps students understand how the United States has changed and grown over the past 250 years, from the signing of the Declaration of Independence in 1776 to the nation’s 250th anniversary in 2026. Through a chronological timeline, nonfiction texts, maps, primary sources, and discussion, students explore key events that shaped the country’s history, government, and identity. The unit begins by examining the birth of the United States, including the American Revolu