What happened to the Pony Express?

Related questions

1. What replaced the Pony Express?
2. Where did the Pony Express begin and end?
3. What were Pony Express riders called?
4. Was Jesse James a Pony Express rider?
5. What gun did Billy the Kid use?
6. Who were some of the famous Pony Express riders?
7. What puts Pony Express out of business?
8. Was Wild Bill a Pony Express rider?
9. How did the Pony Express end?
10. How many horses were in the Pony Express?

Tags

1. #threat
2. #california
3. #midwest
4. #1800s
5. #speedy
6. #civil
7. #system
8. #summary
9. #looming
10. #communication
11. #between
12. #delivery
13. #express
14. #articles
15. #three
16. #reached
17. #accentuated