Answer the questions at the end based on the text.

So ill he could not move, Wolfgang Amadeus Mozart supposedly sang parts of his final masterpiece, "Requiem," from his deathbed. Two centuries later, the exact cause of the Austrian composer's premature death, in December 1791 at age 35, is still a mystery.

This portrait by painter Johann Georg Edlinger, showed Mozart not long before his mysterious death in 1791.

Theories abound. It's known that his entire body was so swollen he couldn't turn over in bed; some say jealous rivals poisoned him, while others suggest scarlet fever, tuberculosis, or lethal trichinosis from undercooked pork.

Now, new evidence points to an altogether different conclusion: Mozart may have died from kidney damage caused by a strep infection, possibly strep throat. Health.com: Can't stop coughing? 8 causes of chronic cough

Dr. Richard H.C. Zegers of the University of Amsterdam and his colleagues analyzed data from Vienna's death registry. Researchers had not previously analyzed the daily death registry -- begun in handwritten script in 1607 and maintained until 1920 -- for clues to Mozart's death.

Zegers and his team looked at information for 5,011 adults who died during three consecutive winters starting in 1790, as well as eyewitness accounts of Mozart's death, according to the study published this week in Annals of Internal Medicine.

"By looking at the patterns of death during Mozart's time and combining them with the signs and symptoms of his final disease, we have not one but two pillars on which our theory is built," said Zegers. "Although we can't be 100 percent conclusive, I'm convinced that we have come very near the exact reason he died."

1. When did Vienna start their death registry?
2. When does it end?
3. How was it written in the beginning?
4. Who has been looking it over?
5. From where?
6. What are they hoping to find?
7. Are they the first to do this?
8. When did Mozart die?
9. What month?
10. How old was he?
11. Are there rumors about how he died
12. Who might have poisoned him?
13. Where could he have picked up trichinosis?
14. Can that be fatal?
15. What did he do while on his deathbed?
16. What?
17. Who painted a picture of him?
18. Why couldn't he flip over?
19. What is a current theory on his cause of death?
20. From what?
1. 1607
2. 1920
3. it was handwritten
4. Dr. Richard H.C. Zegers and his colleagues
5. the University of Amsterdam
6. clues to Mozart's death
7. unknown
8. 1791
9. December
10. 35
11. yes
12. jealous rivals
13. undercooked pork
14. yes
15. sing
16. "Requiem"
17. Johann Georg Edlinger
18. his body was swollen
19. kidney damage
20. a strep infection