keycap: #

This is an emoji version of the '#' symbol commonly found on keyboards and phones. It is frequently used to represent hashtags on social media.

Young people today often use hashtags like '#foodstagram' and '#dailylife' on social media. Using hashtags makes it easy to connect with people who share similar interests.

This symbol was originally created by Bell Labs in the 1960s for telephone signaling. Now it has become a special character that plays an important role in programming languages and social media.

Hashtag culture began on Twitter in 2007 and has become an essential element of social media worldwide. It wields significant influence in marketing and social movements, with hashtags like '#MeToo' even driving global social change.