<P> There are three overland boundaries subject to definition: </P> <Ul> <Li> between Europe and Asia (dividing Eurasia): along the Turkish Straits, the Caucasus and the Urals (historically also north of the Caucasus, along the Kuma--Manych Depression or along the Don River) </Li> <Li> between Asia and Africa (dividing Afro - Eurasia into Africa and Eurasia): at the Isthmus of Suez </Li> <Li> between North America and South America (dividing the Americas): the Isthmus of Panama </Li> </Ul> <Li> between Europe and Asia (dividing Eurasia): along the Turkish Straits, the Caucasus and the Urals (historically also north of the Caucasus, along the Kuma--Manych Depression or along the Don River) </Li> <Li> between Asia and Africa (dividing Afro - Eurasia into Africa and Eurasia): at the Isthmus of Suez </Li>

Where is the dividing line between asia and europe