Facebook is a popular free social networking website that allows registered users to create profiles, upload photos and video, send messages and keep in touch with friends, family and colleagues. The site, which is available in 37 different languages, includes public features such as:

Marketplace - allows members to post, read and respond to classified ads.

Groups - allows members who have common interests to find each other and interact.

Events - allows members to publicize an event, invite guests and track who plans to attend.

Pages - allows members to create and promote a public page built around a specific topic.

Presence technology - allows members to see which contacts are online and chat.

Here I am telling you to hide years on your Facebook timeline. You can't simply delete years from your Facebook profile with the click of a button. Follow below steps to hide timeline of facebook

1.      Open facebook and go to the Account privacy

2.      Click the arrow in the top right corner of the Facebook navigation bar, and then click 'Settings'. You'll now be taken to the 'General Account Settings' screen. From there, click 'Privacy' from the menu on the right. 

3.      Click 'Limit Past Posts'

Two things: this isn't like you're completely erasing all of your old content – you're just simply changing the privacy settings for those posts in one fell swoop from 'Public' to 'Friends' (because we tended to be far more relaxed with privacy in the earlier days of Facebook).

4.      Limit individual Facebook posts' visibility.  To make the individual post private, click the audience button and select a different group such as 'custom' or 'only me'.