This Broadsheet column appearing online first on June 5th 2018.
Type #HomeToVote into Google and you will find pages and pages of links to news items from around the globe detailing the stories of thousands of young Irish emigres travelling back to vote at the recent referendum.
You need to dive a few pages into the results to find items relating to the 2015 origins of the hashtag during the Marriage Equality campaign. Its history, in so much as there is a history, is set out on pages 158-159 of Ireland Says Yes: The Inside Story of How the Vote for Marriage Equality Was Won (One of the books on my 2017 Summer political reading list).
#HomeToVote spontaneously appeared late in the afternoon on the eve of polling day. The campaign had its own #BeMyYes campaign which had generated tens of thousands of messages from people committing themselves to Vote Yes, including many from young Irish people abroad considering returning home.