The term 'Noted Stretches' refers to the ERAS, which are periods of time in history that are characterized by certain events and developments. The ERAS are divided into four main categories: Ancient, Medieval, Early Modern, and Modern. Each Era is further divided into smaller sub-periods, such as the Renaissance or the Industrial Revolution. Noted Stretches are important events or developments that occurred during these ERAS and helped shape the world we live in today.