The term 'Historical Sections' can be broken down into two crossword solutions: ERAS (4 letters). ERAS stands for Epochs, which are periods of time in history that are marked by significant changes. These changes can be political, social, economic, or cultural. Historical sections are the divisions of history that are used to organize and study the past. They are often divided into ERAS, such as Ancient, Medieval, and Modern, and can also be divided into smaller units such as centuries, decades, and years.