Why do you think the preamble from the universal declaration of human rights is considered a seminal document

The preamble from the Universal Declaration of Human Rights is considered a seminal document because it is both the introduction to the Declaration of Human Rights and it sets out the ideas and values for the rest of the document. 
Before we continue, we need to make sure we understand the meaning of a preamble and a seminal document. A preamble is a preliminary or introductory statement, and a seminal document is a document that has strong ideas and is influential on the latter part of the document.