One major reason why the Constitution of the United States has lasted so long is that

One major reason why the Constitution of the United states has lasted so long is because the provisions laid out in some sections of the constitution are skeletal, providing the opportunity for congress to flesh out the operations of government through legislations that addresses the needs of the times, For example: there is only a basic description of the courts in the constitution, congress has established the complex and modern court system through the laws it passed since the constitution was adopted.