Demography

The word Demography is derived from greek words 'Demos' and 'Graphy' in which 'Demos' means people and 'Graphy' means to describe, to write, to draw, to study. By analysing the words the study of the people is said to be demography.

The study of population size, structure and distribution and factors for change in population is called demography. Achille Guilard was the first person to use word demography in 1855. Yet in 1662 John Grant had already analysed the varibles of mortality and had studied about the human population. Therefore John Grant is known as the father of population study.