Twitter's top moments of 2015

We take a look at the year 2015 through the eyes of twitterati. These tweets reflect the highs and lows of the year with some of its historic moments that need to be reflected upon.

Top Retweets: President Barack Obama's retweet on the US Supreme Court's ruling legalizing same sex marriage was one of the top retweets of 2015.

Top Hashtags: #JeSuisCharlie hashtag took Twitter by storm just after the attacks on magazine Charlie Hebdo in Paris on January 7. The widespread support from all corners of the world let Paris know that they were not alone.
#PlutoFlyby also trended on Twitter when in a historic moment NASA's spacecraft flew closest to the Pluto on July 14.

Amazon CEO joined Twitter: The online marketplace CEO Jeff Bezos went live on Twitter. His tweet also started a cold war between him and Elon Musk, CEO of SpaceX, who deals with innovative new re-entry rockets. It set off a public debate between tech moguls.

Obama on Twitter: US President Barack Obama launched his @POTUS account reintroducing himself on Twitter.

Twitter itself went through a tumultous phase in 2015 with its co-founder Jack Dorsey (in the picture) taking over the CEO after Dick Costolo's departure.