The Seventh Century Minor Prophets taught, preached and prophesied during the time of the 700s to the 600s B.C. These prophets were Nahum, Habakkuk and Zephaniah. They are categorized as Minor Prophets. Major and Minor designations only apply to the size of the book.
Concerning the Minor Prophets, each prophet has as message he wants to deliver. Each prophet also has a particular purpose that he wanted to convey in his book to the Jewish people and to others as well.