MIT’s technology review reported on a study that showed that our history is slowly being lost to time:

• Twitter has become an important chronology of our history. Events such as the Middle East revolution were in part driven by individuals posting and sharing links on the microblogging website.
• But many of the links that were used are now dead – they lead to pages that no longer exist.
• This is also true for other culturally significant events such as the spread of the H1N1 virus, and the death of Michael Jackson.
• The material is lost at a rate of 0.02% a day. After two years 27% of pages that helped shaped our present are lost to time.

Read more about the methodology of the study and the people who conducted it over here.

Source: Technology Review