The United States Constitution has been amended multiple times since its adoption in 1787. These amendments have played a crucial role in shaping the country's legal framework, protecting individual rights, and adapting to changing societal norms. There are currently 27 amendments to the Constitution, with the first ten being collectively known as the Bill of Rights.

One significant aspect of constitutional amendments is their ability to modify the original document while maintaining its core principles. For instance, the 13th Amendment abolished slavery and involuntary servitude, except as punishment for a crime. This amendment not only ended an oppressive practice but also signified a major shift in the nation's values. Similarly, the 19th Amendment granted women the right to vote, further expanding democratic participation and representation.

Another notable feature of constitutional amendments is their ability to address pressing issues that arise over time. The 26th Amendment lowered the voting age from 21 to 18 years old, allowing younger generations to participate more fully in the political process. Meanwhile, the 2nd Amendment has sparked intense debates regarding gun ownership rights and regulations, reflecting evolving attitudes towards firearms and public safety. Overall, constitutional amendments demonstrate the flexibility and resilience of the U.S. Constitution, enabling it to remain relevant and effective throughout the country's history.