Throughout history, many countries have ceased to exist, either through political changes, mergers, or even dissolution.

 

1. Yugoslavia: This country existed from 1918 until its dissolution in 1992, which resulted in the formation of six independent countries: Bosnia and Herzegovina, Croatia, Macedonia, Montenegro, Serbia, and Slovenia.

2. Soviet Union: The Soviet Union was formed in 1922 and dissolved in 1991. It was a federal socialist state that spanned 15 republics, and its dissolution resulted in the formation of several independent countries in Eastern Europe and Central Asia.

3. East Germany: East Germany was created in 1949 and was dissolved in 1990 when it reunited with West Germany after the fall of the Berlin Wall.

4. Czechoslovakia: Czechoslovakia was formed in 1918 after World War I and existed until 1993 when it split into two independent countries, the Czech Republic and Slovakia.

5. Tibet: Tibet was a sovereign state until it was invaded and occupied by China in 1950. Tibet continues to exist as a distinct cultural region, but it is not recognized as an independent country by China or many other countries.

   
   
   

These are just a few examples of countries that no longer exist, but there are many more throughout history.