Question

Who put name of continent's and country's?

Answer 1

the kings who were ruling it kept the name of country that is India was first known as jumbudwipa and then bharatvarsha as years passed it changes to Hindustan , this became inde in French and finally become India
as in case of continents they were named according to the interest of the country

Answer 2

all of them have a different number of countries forming them. the names of the seven continents are asia, Africa, Antarctica North America ,South America, Europe, Australia.