What happened in October 1990 regarding Germany?

• A. The border between East and West Berlin opened in 1989
• B. West and East Germany formally reunited in October 1990
• C. Germany joined NATO in 1991
• D. The Berlin Wall was rebuilt in 1991

Answer: (B)

The thing being tested is the moment when Germany finally became one country again after decades of division. After the dramatic collapse of communist regimes in Eastern Europe and the fall of the Berlin Wall in 1989, negotiations led to East and West Germany agreeing to unite. On October 3, 1990, the two German states joined to form a single nation—the Federal Republic of Germany—so the reunification became official in October 1990. This marks the culmination of the post–Cold War process, not the earlier opening of the border or later events. Remember, Germany had already been a NATO member for decades, and the Berlin Wall wasn’t rebuilt after it came down in 1989.