Why is prostitution called 'Worlds Oldest Profession'?

Answer 1

Prostitution is often described as "the world's oldest profession."

It has been claimed that - when counting out hunting - midwifery, or perhaps gardening or teaching, are really the world's oldest professions. However, prostitution in exchange for goods or services may have been common for many thousands of years and may date to early man. Additionally, prostitution has been noted in Bonobo chimpanzee behavior based around access to food and gifts of food, and in penguins in regard to access for suitable stones for nest building. Until the age of industrialization the world was basically agrarian, so goods and services were most often obtained by barter.

In ancient sources (Herodotus, Thucydides) there are many traces of sacred prostitution, starting perhaps with Babylon, where each woman had to reach, once in their lives, the sanctuary of Militta (Aphrodites or Nana/Anahita) and there have sex with a foreigner as a sign of hospitality for a symbolic price.