Our earth is divided into large landmasses.Each of this landmass is known as continent.There is no strict criteria for identifying continents.Conventionally earth has been divided into 7 continents.The list includes Asia,Africa,Europe,North America,South America,Australia and Antarctica. Out of these Asia is the largest in geography as well as as on population basis. Antarctica is the only continent where no humans live except from few scientists who go there for research purpose. Every continent has its own history and include no. of countries.