If you share your Facebook check-ins with Facebook, they would now create individual entries on your Timeline.
Previously, only check-ins with shared images created an individual post on the Timeline.
The company said in a tweet:
Good news, Facebookers! The foursquare check-ins you share to Facebook will now be sitting pretty on your Timeline Map. bit.ly/JYukBz
— foursquare (@foursquare) May 14, 2012