What's up with my data on my iPhone 4

Okay so my iPhone 4 has 6.3 gb on it. The iOS 7 update came out and I wanted it so I deleted my apps. I have 167 photos and 1 video that is 56 secs long. I have Facebook which is 127 mb another app that's 17.0 mb my photos are 360 mb and my music takes up 458 mb. All together that's 962 total but it says I have 1.0 gb available and 5.3 gb used and i don't know what's using up the data!

Because the history data is kept, you should clean.