For those who, like me, are not tech-adept, maybe you could avoid what I ran into

I thought I was facing a cell-phone fiasco, but it turned to be just a simple slip of the hand.

I took my cell phone out of my pocket and was shocked to see that my entire calendar had disappeared! So I turned off my phone and rebooted from scratch, but that didn't help. Then I went to the "lines" (on the top left of my calendar) that one taps to display a menu--Schedule, Day, 3 Days, Week, Month--to make sure that my phone was set to Month (my personal preference). But while I was there, I happened to notice that, below Month, there was another list--Events, Tasks, Reminders, Birthdays, Holidays--and lo and behold, there was no check-mark in the Events check-box. The minute I touched the Events check-box and the check-mark reappeared, so did my Events, which is a darned good thing, because that's where all my doctor appointments are listed! I must have unchecked the Events box by accident.