@ theelegant444,

1. I had prepared US-history from notes. It was a binded copy of notes. I dont know, who had compiled these notes, I think it was prepared by KIPS academy. But I am not sure. I think , it would easily be available in css community. So try to find it from your friends etc...
A book named "History of USA by Majamdar" is also helpful.

2. US-History is an interesting subject. I advise you, must opt it. It is also a scoring subject. The thing you need in US-History, is a good cramming ability. Because you have to learn by heart a lot of things.
I had got 67 marks in US-History. But the reason of my good marks is something else....the paper of 2008 US-history was very easy.