If only one history is taught, a class is considered incomplete because history is a subject that encompasses a vast array of topics, periods, and regions. By only teaching one history, such as the history of a single country or region, students will have a limited understanding of the complexities and diversity of historical events and perspectives.
History is a multidimensional subject that helps us understand the world we live in by exploring different cultures, societies, and civilizations. Teaching only one history does not provide students with a comprehensive understanding of global events, the interconnectivity of world history, and the diverse experiences of individuals throughout time.
To have a well-rounded education in history, it is important to study a broader range of historical events from various regions and time periods. This allows students to develop critical thinking skills, analyze complex historical contexts, and gain a more nuanced understanding of how the past has shaped the present.