Facebook celebrating users' friendships for its birthday

A man poses with a magnifier in front of a Facebook logo on display in this illustration taken in Sarajevo, Bosnia and Herzegovina, in this file photo from December 16, 2015. Facebook Inc smashed investors' expectations with a 52-percent jump in quarterly revenue as it sold more ads targeted at a fast-growing number of mobile users, sending its shares sharply higher after hours. REUTERS/Dado Ruvic/Files

Facebook is giving friendship collages to its 1.6 billion users in celebration of the social network’s 12th birthday.

The collages will be packaged in video presentations of photos of friends and family that have been previously been posted on Facebook. The photos are picked out by automated technology, although each Facebook user will be able to delete some and select other pictures instead.

The videos won’t be seen by anyone else unless a user decides to share the presentation.

Most Facebook users should start seeing the videos at the top of their Facebook feeds by noon Thursday, which the Menlo Park, California, company is hailing as “Friends Day.”

It coincides with the 12th anniversary of Facebook CEO Mark Zuckerberg starting the social network in his Harvard University dorm room.