What are three things you can learn by studying history.

Explanation:  By studying History, you can learn these three essential things:

1. Extensive knowledge of the important Historical Facts that have occurred throughout the history of Humanity and that have forged its development. This can be achieved through various reliable sources of information, as well as the archives of nations where important aspects such as language, oral traditions and customs, among others, rest.

2. Learning the cultural heritage of the different civilizations that have emerged throughout history.

3. Knowledge of the political, economic, and aspects of the social life of the human being and the changes that have occurred throughout history, since investigating and analyzing these aspects are essential to understand the condition of the human being and its continuous transformations.