Shortly after three gunmen killed twelve people at the French satirical newspaper Charlie Hebdo, #CharlieHebdo and #JeSuisCharlie began to trend worldwide.
In the hours since the midday attack on Wednesday 7th January there have been nearly 3.4m tweets alone using the hashtag #JeSuisCharlie and more than 5m featuring #CharlieHebdo, according to Topsy (a tool for searching and analysing Twitter)
Crowds gathered across Europe to pay tribute to the victims and millions of people from all around the world are still paying their tributes online across every social media platform.
The French President François Hollande tweeted soon after the attack
followed a few minutes later from the U.K. Prime Minister David Cameron and the White House.
But #JeSuisCharlie and #CharlieHebdo were not the only hashtags used by thousands, in fact more than 112k started using #JesuisAhmed in order to remind that a French Muslim died while protecting free speech.