In addition to surveying Americans about their experiences with and exposure to race-related content on social media, Pew Research Center conducted a content analysis to examine how race is discussed on Twitter. The Center used the social analytics tool created by Crimson Hexagon to analyze the textual content from all publicly available posts on Twitter. The first case study focused on the timeframe of Jan. 1, 2015, to March 31, 2016. (For an in-depth explanation of how Crimson Hexagon’s tool works, see the methodology.

This analysis determined that during those 15 months, there were a total of about 995 million tweets about race posted on Twitter. (A tweet was considered to be “about race” if it included an explicit reference to blacks, whites or the concept of race in general). That works out to an average of 66 million tweets per month and 2.1 million tweets per day. Indeed, no single day over that time had fewer than 1.5 million tweets mentioning racial issues.

Active discussion of race on Twitter tends to follow large news events – often occurring the day after, as people reflect and respond to the issue

The analysis found that most of the largest race-focused conversations on Twitter during this period came the day following a major event – after people had time to process the event and formulate their reactions. Many of these moments involved incidents in which blacks were the victims of alleged police brutality or the targets of racially-charged violence. At the same time, several of the other largest conversations involved award shows or racial controversies more broadly.

In this context, Twitter was more likely to be used as a place to respond to events and synthesize ideas than as a platform to report details of incidents as they occurred.

For example, during the 15 months studied, the day with the most race-related conversation was June 18, 2015, one day after the mass shooting at a historically black church in Charleston, South Carolina. On that day, there were approximately 4.3 million tweets posted about race, more than double the 2.1 million tweets the previous day when the shooting occurred.

Several of the other highpoints followed a similar pattern. The sixth-largest day was Feb. 16, 2016, one day after the 2016 Grammy Awards which featured a provocative performance by rapper Kendrick Lamar. The ninth largest was Feb. 29, 2016, one day after the 2016 Oscars, which took place amid the #OscarSoWhite backlash.

Majority of race-related posts on Twitter were tied to current events

The nearly one billion race-related posts on Twitter during this time period touched on a wide-ranging set of subjects, including social activism, pop culture and personal experiences. However, the majority of the racial conversation (60% of the tweets in total) was directly related to news and current events.

Several major storylines received particular attention. Some 10% of all tweets dealing with race – an average of more than 6.6 million tweets each month – mentioned the 2016 presidential campaign. Republican candidate Donald Trump was the subject of many of these: For example, on March 12, 2016, about 1,800 different accounts retweeted a video originally posted by 41 Action News of protesters interrupting a Kansas City rally and accusing Trump of being a “racist.”

Issues related to the police or judicial system made up an additional 7% of the conversation surrounding race. These tweets covered topics such as the death of Michael Brown in Ferguson, Missouri, and the #BlackLivesMatter movement.

Discussions of race in the context of pop culture events accounted for 7% of the overall Twitter conversation around race. Some 35% of race-related posts on Twitter pertained to other events such as the video of University of Oklahoma fraternity members chanting racial slurs and the controversy surrounding NAACP-branch president Rachel Dolezal who was accused of lying about her race.

Another portion of tweets about race were focused on broad themes or individual experiences

The remaining 40% of the racially focused conversation on Twitter was not tied to specific current events, but rather to other subjects such as wider political themes or personal circumstances.

Just over half of these tweets (representing 22% of all race-related posts) pertained to broad issues around discrimination, sometimes in a historical context. For example, on July 7, 2015, Congressman and civil rights activist John Lewis posted a message alongside a mugshot of himself from 1961. His post was retweeted more than 25,000 times.

A slightly smaller number (representing 18% of race-related posts) dealt with race in a general sense without mentioning discrimination or a specific news event. In one example, more than 26,000 accounts retweeted a January 2015 drawing by @branfire. The drawing was of the Disney character Elsa from the movie Frozen who was depicted with dark skin and followed by the caption “RT to make a racist mad.”