After deactivation, your timeline and other information about you will disappear from Facebook. All your content will come back when you reactivate your account.
How I Disable My Facebook Account
1. Go to Facebook, then enter your email address and password. Click "Log In."
2. Click the "Account" gear icon, then click "Account Settings."
3. Click on "Security," then click "Deactivate Your Account" near the bottom of the Security Settings page.
4. Select the reason for the deactivation, such as "This is short-lived. I'll be back."
5. Click the check box next to "Opt out of getting future emails from Facebook" if you don't wish to receive Facebook e-mails after deactivation. If you don't pull out, you will still receive event and group invites from your good friends.
6. Click "Confirm" to shut off the account.
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To reactivate the account, you just have to log back in with your email address and password How I Disable My Facebook Account.