End of communism and free election in Hungary opened the border to Austria, where thousands of East Germans migrated

 
The citizens of East Berlin were now allowed to cross over to West Berlin through any GDR crossing, if they got a visa through a police station the day after the announcement

 
On the 9th of September thousands of Berliners arrived at the wall demanding access into western Europe

 
Border Crossings were opened freely as the head border guards ignored direct orders

 
There were over 1 million protesters protesting against the system(wall) in Liepzig and Berlin, nearly 10% of the entire population

 

The new improved relations with the West including Reagan(America) and Thatcher(United Kingdom) made many.Believe they could find a better life in the west.

 
Gorbachevs new liberal approach to communism gave many East Berliners hope, and led to their rebellion against the wall

 
Gorbachevs new policies perestroika and glastnost introduced a new level of freedom the soviet and eastern european people had never seen before giving them hope.

 
The East Berlin governments original rejection of Gorbachevs liberal communism, and the banning of perestroika and glastnost may have incited more protest