Lecture 1. What Is language?
Lecture 2. When language began
Lecture 3. How language changes, sound change
Lecture 4. How language changes, building new material
Lecture 5. How language changes, meaning and order
Lecture 6. How language changes, many directions
Lecture 7. How language changes, modern English
Lecture 8. Language families, Indo-European
Lecture 9. Language families, tracing Indo-European
Lecture 10. Language families, diversity of structures
Lecture 11. Language families, clues to the past
Lecture 12. The case against the world's first language.