Introduction -- Chapter 1. The 1920s: A game grows up -- Chapter 2. The 1930s: Forward thinking -- Chapter 3. The 1940s: Monsters Inc. -- Chapter 4. The 1950s: Cold snap -- Chapter 5. The 1960s: Ups and downs -- Chapter 6. The 1970s: New home, new foundation -- Chapter 7. The 1980s: Shufflin' crew -- Chapter 8. The 1990s: Moving on -- Chapter 9. The 2000s: Many happy returns -- Chapter 10. The 2010s: Turnover at the top.