Barack Obama, marriage equality and Caitlyn Jenner top Twitter 2015 list

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Twitter has revealed the most popular tweets, hashtags and people of 2015.

The social media site has unveiled the most influential tweets, tweeters and hashtags of the past twelve months.

President Obama’s tweet after the Supreme Court legalised same-sex marriage across America was one of the most retweeted messages of 2015.

#MarriageEquality was the third most popular hashtag of the year, peaking during May and June’s same-sex marriage votes in Ireland and the USA respectively.

#JeSuisCharlie and #PrayForParis – a way for Twitter users across the world to show their support for victims of the atrocities in January and November – were the most popular hashtags among Twitter’s 320 million global users.

Barack Obama, marriage equality and Caitlyn Jenner top Twitter 2015 list

#LoveWins – celebrating the US Supreme Court’s landmark decision to legalize same-sex marriage nationwide – started trending globally on June 26.

Obama’s post that day was quickly retweeted across the globe – making it the fourth most popular tweet of the year, with nearly a million retweets and favourites.

The highest court in the US made the decision after hearing ‘mega-case’ Obergefell v. Hodges.

1.17 million tweets with the hashtag #LoveWins were sent into the Twittersphere only two hours after the public heard the official ruling.

Social media users also tweeted 716,000 posts involving the Supreme Court.

The leader’s message applauding the “big step” toward equality, placed in-between tweets from members of the popular boyband One Direction, who dominated the list.

Caitlyn Jenner’s coming out tweet was also in the top 10, after she smashed a world record by gaining a million followers on the site in record time.

“Another Jenner world record, and at 65? Who’da thought! Humbled and honored to have reached 1M followers in 4 hrs. Thank you for your support,” she wrote.

Barack Obama, marriage equality and Caitlyn Jenner top Twitter 2015 list

In a previous tweet she wrote: “I’m so happy after such a long struggle to be living my true self. Welcome to the world Caitlyn. Can’t wait for you to get to know her/me.”

Jenner, Olympic gold medal winner and reality TV star came out as trans in an interview with Diane Sawyer in in April.

Barack Obama, marriage equality and Caitlyn Jenner top Twitter 2015 list

Revealing that her name was now Caitlyn, Jenner also appeared in the iconic shoot by legendary photographer Annie Leibovitz for Vanity Fair magazine, shot at her Malibu home.