Historically, "Greater Assam" once encompassed much of Northeast India. On , under the North-Eastern Areas (Reorganisation) Act , the map of Assam was permanently altered:
: The Wild Life (Protection) Act, 1972 was enacted in India. Assamese and English Calendar Months assamese and english calendar 1972 top
The year 1972 holds unique significance in the cultural and political history of Assam, marked by both a leap year in the Gregorian system and pivotal social movements. Understanding this year requires a dual look at the standard English (Gregorian) calendar and the traditional Assamese lunisolar system, known as . Understanding the Calendrical Systems under the North-Eastern Areas (Reorganisation) Act