Why does the US spell differently?

Related questions

1. Which English is used in Nepal British or American?
2. What are basic language skills?
3. Do I speak English?
4. How many countries is English spoken in?
5. Should Americans use British or English?
6. Is Britisher an English word?
7. What is first language English?
8. Why is English so widely spoken?
9. Why are British and American English different?
10. What words are different in British and American English?

Tags

1. #spelled
2. #blame
3. #different
4. #spellings
5. #sound
6. #should
7. #spelling
8. #question
9. #thought
10. #british
11. #certain
12. #answer
13. #ardent
14. #webster
15. #first
16. #words
17. #american
18. #dictionary
19. #advocate
20. #reform