The hashtag on Twitter is 15 years old this month, and should have been called an octothorpe: 5 Interesting facts about it’s history
The use of the hashtag as a Twitter tool to denote a specific topic in order for the masses to follow along—which was first suggested (in a Tweet, naturally) by Silicon Valley regular and early adopter Chris Messina—turned 15 years old in August 2022. If Twitter had it's own way, it would never have come...
