Asia is considered one of the seven continents. This continental definition, however, is far broader than many people think. Under the seven continent methodology, Asia stretches from Japan in the East through Russia in the West. It encompasses Saudi Arabia and everything above Asia. While it doesn’t always make practical sense, there is no denying this definition of Asia makes it the home of over 60 percent [4 billion] of all humans. China and India, of course, are the locations of a vast majority of these people.
In modern times, geographers recognize there really is no dividing line between Asia to the west and Europe to the East. This has resulted in the entire area being called Eurasia, but thousands of years of terminology aren’t about to pass into antiquity. Today, most people refer to Europe as a continent so far as it extends to the Ural Mountains in Russia. Everything to the east of that mountain range is considered Asia. For instance, Israel is considered a country in Western Asia!
Russia has even picked up on this theme with the two heads on the national flag. The west facing head refers to the European part of Russia while the East facing head refers to the Asian part of the country. Within Russia, it is almost as if there are two countries with Moscow and St. Petersburg having heavy European influences. Cities in the Far East, such as Vladivostok, are much more oriented to China and such.