what is the difference between periodisation …

Periodisation is simply a process of dividing the annual training plan into a series of manageable phases (mesocycles). Each phase can then target a specific or series of attributes to be developed within a designated period of time.  Periodization is the process of categorizing the past into discrete, quantified named blocks of time in order to facilitate the study and analysis of history. This results in descriptive abstractions that provide convenient terms for periods of time with relatively stable characteristics. Moving away from British classification, historians have usually divided Indian history into 'ancient', 'medieval' and 'modern'. ... It is a periodisation that is borrowed from the West where the modern period was associated with the growth of all the forces of modernity – science, reason, democracy, liberty and equality.