Macrohistory is the study of long-term patterns and trends in history, across different times and places. It involves looking at large-scale events and changes that have shaped history around the world over thousands of years. Macrohistory can help us to understand how societies have evolved and what patterns have occurred over time. For example, we might look at when different countries and cultures went through different stages of development or when they made changes in their government or warfare. Looking at these bigger patterns can help us to gain insights into why things developed in a certain way, as well as how we can learn from them to help build a better future.