Переведите текст, передайте предложения в Passive Voice. Facebook is one of the largest social networks in the world. It was based on February 4, 2004 by Mark Zuckerberg and his roommates during training at Harvard university — Eduardo Saverin, Dustin Moskowitz and Chris Hughes.Originally the website was called Thefacebook and was available only to students of Harvard university, then registration opened for other universities of Boston, and then and for students of any educational institutions of the USA having an e-mail address in the .edu domain.Since September, 2006 the site is available to all Internet users aged from 16 years having the e-mail address.Facebook allows to create a profile with the photo and information on itself, to invite friends, to communicate with them, to change the status, to leave messages on personal and others' "walls", to load photos and videos, to create groups (communities on interestsThe user can control the level of access to information published in its profile and define who has access to this or that part of the page.Facebook belongs to the five of the most visited websites of the world. On August 24, 2015 the number of visitors of the social network Facebook for the first time made one billion people.