Here's a Neat Infographic on 'The History of the Hashtag'
mauilibrarian2 in Olinda
JULY 21, 2013
According to the infographic, Chris Messina first suggested using hashtags for Twitter groups in 2007. Tumblr followed later that year, Instagram started using hashtags in 2010, Google Plus hopped on the bandwagon in 2011, and Flickr barely beat out Facebook to avoid last place in 2013.
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