The hashtag was born on IRC networks before migrating to Twitter and evolving into something that people verbalised ("hashtag fail"). Now some factions are trying to turn it into a gestural expression ...

What is the origin of this # mysterious symbol? It’s gone by many names, (the pound sign, the number sign, the octothorpe and the hashtag symbol) and it’s had many meanings, but what is the origin of ...

From the Romans to Twitter, the hash sign – or octothorpe – has had a rich history, and now this innocuous little character has found a mighty resurgence as the hashtag. What happened along the way?

The hashtag symbol, or #, has recently been named the UK’s children’s word of the year. See coverage of this story here. Children’s dictionary writers at Oxford University Press analysed 120,421 ...