All of my events have disappeared in the new Photos app for OSX Yosemite

I have just upgraded OSX Yosemite and have been looking at the new Photos app. It seems all of my events have disappeared. How do I get them back?


The best option for working with events is to use the sidebar (cmd + alt + s or view → Show Sidebar). They will be listed there:

screenshot

Without using the sidebar they are listed in the Albums section:

screenshot