First of all, the hashtag has an identity crisis: it’s the phrase following the # (“hash”) symbol, except when you are stuck in someone’s voicemail system. Then it’s called the pound key. Or the ...

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 ...