The Gracchi Brothers' Land Reforms

The great Roman Republic eventually came crashing down in a series of civil wars and revolts. As we learn about its final gasps, we'll address the following questions:

1. How did the Gracchi brothers' land reforms lay the groundwork for change within the Republic?
2. What set off the first civil war?
3. How did Julius Caesar and his two fellow generals gain enough power to bring down the Republic?"