250 years of the US: 25 key moments that forever changed America and the world

The United States marks its 250th anniversary, a milestone referred to as the 'semiquincentennial.' This occasion prompts a reflection on the nation's complex and often turbulent history, characterized by profound changes, notable accomplishments, and significant tragedies.

The country's journey over these two and a half centuries has had far-reaching consequences, not only domestically but also on a global scale. From the foundational Declaration of Independence to the devastating impact of a civil war and the economic upheaval of the Wall Street crash, the U.S. has navigated a path marked by pivotal events.

This historical overview presents 25 key moments that have shaped America and the world. These moments encapsulate the nation's evolution, highlighting critical developments and impactful occurrences that have defined its past and influenced its present trajectory.