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.

What are the answers to this following set of questions:

1. How many states in Germany?
2. When was the creation of the Federal Republic of Germany
3. through the unification of what?
4. What administration were they under?
5. Does Germany have a constitution?
6. why?
7. What does it emphasize?
8. What is Berlin called?
9. Anyplace else have that name?
10. how about the remaining 13 ?
11. what does that mean?
12. Is west berlin part of the federal republic?
13. What was it considered?
14. Was it intergrated?
15. What was created in the aftermath of WWII?
16. What includes the cities of Breman and Bremerhaven?

Numbered answers:
1. 16
2. 1949
3. the western states
4. American, British, and French
5. yes
6. the constituent states retain a measure of sovereignty
7. geographical conditions
8. Stadtstaaten (city-states)
9. Hamburg
10. Flächenländer
11. area states
12. no
13. de facto state
14. yes
15. Federal Republic of Germany
16. Free Hanseatic City of Bremen