From the global pandemic to the US election, the extraordinary events of 2020 have both fuelled, and been shaped by, the online spread of falsehoods, propaganda and bizarre conspiracy theories.

Trending’s Mike Wendling and Marianna Spring, the BBC’s specialist disinformation reporter, look back at some of the most viral rumours, how they debunked them, and discover what happened next. Producer: Jonathan Griffin Picture caption: Photo illustration of a phone showing “fake news” Picture credit: BBC