Answer the questions at the end based on the text.

Buenos Aires, Argentina (CNN) -- A former Argentinian dictator and an ex-army chief are scheduled to go on trial this week on charges of human rights abuses during the nation's right-wing rule from 1976-83, the government's Judicial Information Center said. 

Jorge Rafael Videla was among the coup leaders who overthrew then-President Isabela Martinez de Peron in March 1976. He ruled as dictator until 1981. 

Also scheduled to go on trial this week in a separate proceeding will be Luciano Benjamin Menendez, former head of the Third Army Corps. He is accused of violating the human rights of four people. 

There are 31 defendants in the two trials, the Judicial Information Center said on its website Tuesday. 

Another former dictator, Gen. Reynaldo Benito Bignone, was sentenced in April to 25 years in prison for kidnapping and torturing 56 people. He ruled Argentina from June 1982 until the nation's return to democracy in December 1983. 

Bignone, 82, faces two other trials: in the abduction and disappearance of doctors and nurses at the Hospital Posada and of two soldiers when he was head of the Military College. 

Up to 30,000 students, labor leaders, intellectuals and leftists who ran afoul of the dictatorship because of their political views disappeared or were held in secret jails and torture centers during the nation's eight-year "Dirty War." 

In the trials that start this week, the proceedings for Menendez are slated to begin Thursday in the city of Mendoza. Six other defendants will go on trial with him. 

The trial against former dictator Videla is scheduled to start Friday in Cordoba. He will be joined by 24 other defendants, the Judicial Information Center said. 

1. Who was part of a coup?
2. In which country?
3. Who did he and his cohorts overthrow?
4. When?
5. Did he become the leader?
6. Until how long?
7. Who else is on trial?
8. What did he lead?
9. How many people's rights is he said to have hurt?
10. What organization is following the proceedings?
11. Is Videla the only dictator on trial?
12. Who else was on trial?
13. How long will he be in jail?
14. When did Argentina become a democracy again?
15. How many groups that disappeared are mentioned?
16. How old is Bignone?
17. What else was he the leader of?
18. Which medical facility lost employees?
19. Where is Menendez's trial?
20. What about Videla's?

Numbered answers:
1. Jorge Rafael Videla
2. Argentina
3. then-President Isabela Martinez de Peron
4. March 1976
5. yes
6. 1981
7. Luciano Benjamin Menendez
8. Third Army Corps.
9. four
10. Judicial Information Center
11. no
12. Gen. Reynaldo Benito Bignone
13. 25 years
14. 1983
15. Four
16. 82
17. Military College
18. Hospital Posada
19. Mendoza.
20. Cordoba