1. Characteristics
2. Background (1950s–early 1960s)
2.2 The "in-between years"
3. Emergence (mid- to late 1960s)
4. Progression (late 1960s to mid-1970s)
5. Punk and its aftermath (mid-1970s to the 1980s)
6. Alternative goes mainstream (the 1990s)
7. The new millennium (the 2000s)