Religious persecution from the Catholic church brought the original Pilgrims to america
It is technically a legal document, and it is binding. Which makes it unique from other types of documents. I’m not sure what you mean in regards to “tool”. But I would think it would be considered a reference document
Hinduism has survived because of many reasons such as its flexibility, not a standarded structure , how it had been mingled with social life, bakthi and warriors.