Facebook is a social networking service that provides birthday reminders. “Without Facebook I would forget 99% of my friends birthdays” was posted on Twitter by @TeenQuotes101 on December 8, 2010. “Without #facebook I would forget 90% of my friends birthdays” was posted on Twitter on May 22, 2011.
 
“Without facebook, I would forget 90% of my friend’s birthdays. #teenagesecretss” was posted on Twitter on June 4, 2011. “Friends’ birthdays”—not “friend’s birthdays”—is grammatically correct.
 
       
Wikipedia: Facebook
Facebook is an American for-profit corporation and an online social media and social networking service based in Menlo Park, California. The Facebook website was launched on February 4, 2004, by Mark Zuckerberg, along with fellow Harvard College students and roommates, Eduardo Saverin, Andrew McCollum, Dustin Moskovitz, and Chris Hughes.
 
Twitter
Wanyan‏
@4Rihalz
I don’t bother to ask them anyways LOlz RT @TeenQuotes101: Without Facebook I would forget 99% of my friends birthdays!
9:07 PM - 8 Dec 2010
 
Twitter
Teen Quotes‏
@Teen_Quotes1
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Without Facebook I would forget 99% of my friends birthdays.
9:37 PM - 19 Dec 2010
 
Twitter
•.¸¸ ♥ Farheya ♥•.¸¸‏
@farheya_13
Without #facebook I would forget 90% of my friends birthdays 😊 #justsaying
3:43 PM - 22 May 2011
 
Twitter
sad‏
@justsadquotes
Without facebook, I would forget 90% of my friend’s birthdays. #teenagesecretss
7:47 AM - 4 Jun 2011
 
Facebook
😛
July 6, 2013 ·
Without Facebook I would forget 90% of my friend’s birthdays. 😛
 
Facebook Status
Without Facebook I would forget 90% of my friend’s birthdays.
Posted by saimtec zain on September 27, 2016 in Birthday Facebook Status
 
Twitter
FUNNY TWEETS‏
@JokesMemesFacts
Without Facebook I would forget 90% of my friend’s birthdays.
6:36 PM - 12 Jul 2017