Helpful Facebook Sign in tips on how to create, sign up, login, sign out, or log out of Facebook account safely and securely on a private and public computer.

Naturally, the first few people to sign up for Facebook were Harvard students. Some shared classes with Mark Zuckerberg. Others were roommates who helped him launch the site.

Facebook rolled out the ability to sign up for Messenger sans account in June 2015, first for users in the U.S., Canada, Peru, and Venezuela. In addition to phone numbers, photos and names were ...