Demography greek word

What is the origin of the word demography?
Demography (from Ancient Greek δῆμος (dêmos) 'people, society', and -γραφία (-graph\xeda) 'writing, drawing, description'), also known as Demographics, is the statistical study of populations, especially human beings..
Who introduced the word demography?
In its simplest definition, demography is the scientific study of human populations.
According to Landry (1945), the term demography was first used by the Belgian statistician Achille Guillard in his 1855 publication: Eléments de statistique humaine, ou démographie comparée..

The word demography comes from two ancient Greek words, demos, meaning "the people," and graphy, meaning "writing about or recording something" — so literally demography means "writing about the people." Like many branches of the sciences, demography began in the 19th century, when the general craze for cataloging

Demographics, the particular characteristics of a large population over a specific time interval. The word is derived from the Greek words for “people” ( demos) and “picture” ( graphy ).

demography (n.) "that branch of anthropology which studies life-conditions of a people by its vital and social statistics," 1880, from Greek dēmos "people" (see demotic) + -graphy.Meaning of Demography The term demography has been derived from two Greek words, Demos means the people while graph means to draw or to write. So, literally speaking, demography is concerned about writings about people.The term demography is of Greek origin and is composed of two words demos meaning people and graphy implying the written script or writing about something specific.

Greek natives in the Ottoman Empire who were forced to leave

Greek refugees is a collective term used to refer to the more than one million Greek Orthodox natives of Asia Minor, Thrace and the Black Sea areas who fled during the Greek genocide (1914-1923) and Greece's later defeat in the Greco-Turkish War (1919–1922), as well as remaining Greek Orthodox inhabitants of Turkey who were required to leave their homes for Greece shortly thereafter as part of the population exchange between Greece and Turkey, which formalized the population transfer and barred the return of the refugees.
This Convention Concerning the Exchange of Greek and Turkish Populations was signed in Lausanne, on January 30, 1923 as part of the peace treaty between Greece and Turkey and required all remaining Orthodox Christians in Turkey, regardless of what language they spoke, be relocated to Greece with the exception of those in Istanbul and two nearby islands.
Although the term has been used in various times to refer to fleeing populations of Greek descent, the population strength and the influence of the Asia Minor Greeks in Greece itself, has attached the term to the Anatolian Greek population of the early 20th century.
At least 300,000 Greek refugees were from Eastern Thrace, whereas at least 900,000 were from Asia Minor.
At least 150,000 were from Istanbul, who left the city in three years before 1928.

Demography greek word

What is the origin of the word demography?

Who introduced the word demography?