Facebook will soon be creating a portal to enable people on Facebook to learn which of the Internet Research Agency Facebook Pages or Instagram accounts they may have liked or followed between January 2015 and August 2017. This is part of our ongoing effort to protect our platforms and people who use them from bad actors who try to undermine our democracy. This tool will be available for use by the end of the year in the Facebook Help Center in the Help Center. It is important that people understand how foreign actors tried to sow division and mistrust using Facebook before and after the 2016 US election.”]
Source: https://about.fb.com/news/2017/11/continuing-transparency-on-russian-activity/