The following are stories and questions about them. Each story is followed by a question and answer to a given question.

Story: Germany is a federal republic consisting of sixteen federal states (German: Bundesland, or Land).[a] Since today's Germany was formed from an earlier collection of several states, it has a federal constitution, and the constituent states retain a measure of sovereignty. With an emphasis on geographical conditions, Berlin and Hamburg are frequently called Stadtstaaten (city-states), as is the Free Hanseatic City of Bremen, which in fact includes the cities of Bremen and Bremerhaven. The remaining 13 states are called Flächenländer (literally: area states). 

The creation of the Federal Republic of Germany in 1949 was through the unification of the western states (which were previously under American, British, and French administration) created in the aftermath of World War II. Initially, in 1949, the states of the Federal Republic were Baden, Bavaria (in German: Bayern), Bremen, Hamburg, Hesse (Hessen), Lower Saxony (Niedersachsen), North Rhine Westphalia (Nordrhein-Westfalen), Rhineland-Palatinate (Rheinland-Pfalz), Schleswig-Holstein, Württemberg-Baden, and Württemberg-Hohenzollern. West Berlin, while officially not part of the Federal Republic, was largely integrated and considered as a de facto state.

Question: How many states in Germany?
Answer:16

Question: When was the creation of the Federal Republic of Germany
Answer:1949

Question: through the unification of what?
Answer:the western states

Question: What administration were they under?
Answer:American, British, and French

Question: Does Germany have a constitution?
Answer:yes

Question: why?
Answer:the constituent states retain a measure of sovereignty

Question: What does it emphasize?
Answer:geographical conditions

Question: What is Berlin called?
Answer:Stadtstaaten (city-states)

Question: Anyplace else have that name?
Answer:Hamburg

Question: how about the remaining 13 ?
Answer:
Flächenländer