1. The division of history or time into distinct periods or eras, typically based on significant events, cultural changes, or characteristics.
Usage: British spelling; American spelling is 'periodization'; Commonly used in history, archaeology, and academic contexts
2. A system or scheme used to organize and classify historical time into meaningful segments.
Usage: Often refers to the framework or methodology itself

Examples

• The periodisation of the Middle Ages into Early, High, and Late periods helps historians understand social change.
• Scholars debate the periodisation of ancient Egypt, disagreeing on exact dates for kingdom transitions.
• Art history relies heavily on periodisation to categorize styles like Renaissance and Baroque.
• The periodisation of music history divides Western classical music into distinct eras.
• Different cultures have their own periodisation systems based on their historical events.
• Periodisation allows students to organize vast amounts of historical information into manageable units.