Amendments Where can I find this? Summarize each, briefly, in your own words.

13. 16th Unit 8, lesson 6
14. 17th Unit 8, lesson 6
15. 18th Unit 8, lesson 6
16. 19th Unit 8 lesson 3

To find information about these amendments, you can refer to Unit 8, Lesson 6 for the 13th, 16th, and 17th amendments, and Unit 8, Lesson 3 for the 19th amendment. Unfortunately, there is no information provided for the 18th amendment.