According to reports, many international scientists claim that a new continent named "Zeland" was found around New Zealand. It meets all the requirements of the continent's recognition standards and is the eighth continent in the world. Geography textbooks will be rewritten. The conclusion that "geography textbooks in various countries will be rewritten" must be based on:. ['Geographic textbooks of various countries have been rewritten due to changes in the content of related knowledge such as "Mainland" and "Continent".', "Continent's standards are authoritative and will not change until textbooks are released.", 'Geography textbooks in various countries do not currently contain any content on "the eighth continent of the world".', 'Geography textbooks of various countries have their own contents about "mainland" and "continent".']