The headline around the Web was that, for the first time, Facebook had eclipsed Google as the most-visited site in the U.S. for a full week. Previously, Facebook had hit No. 1 on a few big holidays, like Christmas and New Year’s Day. That makes sense—everyone is home and uploading photos from that digital camera Santa left under the tree, or furiously untagging photos from the night before (respectively). But for the week ending March 13, the biggest holiday was Registered Dietitian Day. It’s clear from the chart below that Facebook’s days of needing major events to eke past Google are over.