Here are some name meanings I came up with>

Eragon: Vast Adventure
Arya: pure
Murtagh: foggy day
oromis: exalted one
Galbatorix: calm, mysterious rebel/ maker of trouble
Nasuada: dares to persuade
Islanzadi: prosperous island
orik: happy light
roran: fierce, swift
brom: ?
ajihad: peace
glaedr: glad one

-based on combinations of names in naming books

And here are the important event in the first book>

1. the shade
2. brom tells about the riders p.31
3. saphira hatches p.36
4. Garrow dies p.90
5. eragon's sword p.101
6. snowfire p.117
7. a feat of magic p.133
8. fighting p.160
9. flying p.161- 162
10. angela & jeod p. 179
11. Fortune told p.203
12. Murtagh p.267
13. mind searching p. 339
14. Ajihad explains p.402
15. elva's creation p. 428
16. Arya vs. Eragon p. 459
17. Battle p. 479
18. end p. 497