Finding where to disable this or the thought of manually having to delete all these birthdays was not making my day. My first mistake was sifting around the Facebook page looking for a way to disable them. My 2nd mistake was looking through all my settings on my desktop gCalendar. Finally I found them on my Android phone. It’s so simple. Just bring up the calendar app, tap the Calendar button on the top center of the screen and uncheck the Facebook option.
|Press the Calendars button|