Facebook knows a lot about you. Some of this information was transmitted during registration. But there is information about you that you may not know exists.
1. Open facebook.com.
2. Click on the arrow at the top right.
3. Select "Settings and Privacy -> Settings -> Your Facebook Information".
4. Click "View" to the right of "View my information".
The "Information about you" section collects the following data: search history, voice recordings, your location, information associated with your account, and the duration of sessions.