movements such as American independence, the French Revolution, and especially during wartimes. Wartime propaganda is often demanded for shaping public opinions to gain more allies on an international level, as well as calling for citizens to make a contribution and sacrifice to the war on a domestic level. Propaganda was used in the media when the thirteen colonies were trying to separate from Britain. One example from this time period, is the Boston Massacre. After this event, the colonist began putting forms of propaganda into the newspapers in an attempt to get more people to rebel against the British. Governments during the First World War devoted massive resources and huge amounts of effort to producing material designed to shape opinion and action internationally. As Clark claimed, posters in wartime with some visual codes are powerful tools to make people adapt to the new conditions and norms arising from the wars and to accommodate the needs of the war. During the Second World War, the power of propaganda came to the extreme, under the horrors of Nazi Germany. And since then, the word carries more negative connotations than neutral. Nowadays, the term is used in journalism, advertising, and education mostly in a political context. In non-democratic countries, propaganda continues to flourish as a means for indoctrinating citizens, and this practice is unlikely to cease in the future. In its origins, "propaganda" is an ancient and honorable word. Social media Social media have become powerful tools for propaganda as the Internet is unprecedentedly accessible for each individual, and interactive social networking sites provide a strong platform for debate and sharing opinions. Propaganda, in forms of a video uploaded to YouTube, a post on Facebook or Twitter, or even a piece of comment, has far-reaching effectiveness to disseminate certain values and beliefs. Another element that makes social media effective for sharing propaganda is that it can reach many people with little effort and users can filter the content to remove content they do not want while retaining what they would like to see. This ease of use can be used by ordinary people as well as government agencies and politicians, who can take advantage of the platforms to spread "junk" news in favor of their cause. Research In 2017 the University of Oxford launched the Computational Propaganda Research Project, a series of studies researching how social media are globally used to manipulate public