Why Did My Calendar Events Disappear On My Iphone. Recover missing iphone calendar events from iphone without backup. Log into icloud.com and find that i only have an 'untitled' calendar, everything else is gone.
What you add (event) on iphone calendar is synced with default calendar unless you have chosen a specific. If your iphone calendar events have disappeared, there are several potential reasons, such as a software bug or an accidental deletion.