Answer the questions at the end based on the text.

Stuttgart ( ; ; Swabian: ", ; ) is the capital and largest city of the German state of . 

Stuttgart is located on the Neckar river in a fertile valley locally known as the "Stuttgart Cauldron" an hour from the Swabian Jura and the Black Forest, and its urban area has a population of 609,219, making it the sixth largest city in Germany. 2.7 million people live in the city's administrative region and another 5.3 million people in its metropolitan area, making it the fourth largest metropolitan area in Germany. 

The city and metropolitan area are consistently ranked among the top 20 European metropolitan areas by GDP; Mercer listed Stuttgart as 21st on its 2015 list of cities by quality of living, innovation agency 2thinknow ranked the city 24th globally out of 442 cities and the Globalization and World Cities Research Network ranked the city as a Beta-status world city in their 2014 survey. 

Since the 6th millennium BC, the Stuttgart area has been an important agricultural area and has been host to a number of cultures seeking to utilize the rich soil of the Neckar valley. The Roman Empire conquered the area in 83 AD and built a massive near Bad Cannstatt, making it the most important regional center for several centuries. Stuttgart's roots were truly laid in the 10th century with its founding by Liudolf, Duke of Swabia, as a stud farm for his warhorses. Overshadowed by nearby Cannstatt, the town grew steadily and was granted a charter in 1320. The fortunes of Stuttgart turned with those of the House of Württemberg, and they made it the capital of their county, duchy, and kingdom from the 15th century to 1918. Stuttgart prospered despite setbacks in the Thirty Years' War and devastating air raids by the Allies on the city and its automobile production. However, by 1952, the city had bounced back and it became the major economic, industrial, tourism and publishing center it is today.

1. Where is Stuttgart located?
2. What type of land is it considered?
3. Is it known by any other names?
4. What?
5. What country is it in?
6. Is it the largest city?
7. What is the population?
8. Is it an agricultural area?
9. What makes it so?
10. How long has it been so?
11. How does it rank for quality of living?
12. Does it have other rankings?
13. By whom?
14. What did they say about it?
15. What other rankings does it have?
16. What did  the Globalization and World Cities Research Network rank it?
17. When was that?
18. When did the Roman Empire conquer it?
19. What did they do then?
20. Who was it founded by?
1. on the Neckar river
2. a valley
3. yes
4. "Stuttgart Cauldron"
5. Germany.
6. no
7. 3.3 million
8. yes
9. the rich soil of Neckar valley.
10. Since the 6th millennium BC
11. Mercer listed Stuttgart as 21st on its 2015 list of cities by quality of living
12. yes
13. GDP
14. The city and metropolitan area among the top 20 European metropolitan areas
15. 2thinknow ranked the city 24th globally
16. a Beta-status world city
17. 2014
18. in 83 AD
19. made it the most important regional center for several centuries.
20. Liudolf, Duke of Swabia