Saturday is the 27th anniversary of the Tiananmen Square protests in the Chinese capital.
The student-led, pro-democracy demonstrations in Beijing, which is commonly known in China as the 'June 4 incident', turned into a massacre after tanks rumbled through the streets and the military fired into the unarmed crowd.
Beijing still does not acknowledge the event with any kind of memorial but an image of a lone man who bravely tried to block a line of tanks has long acted as a symbol of repression in the communist state.
A final death toll from the 1989 crackdown has never been released, but it is believed to run high into the hundreds, possibly even the thousands.
Tiananmen Square Demonstration
According to a New York Times report from that fateful day, many protesters risked their lives to resist the army’s attack. "As doctors, we often see deaths," a doctor at a local hospital told the Times that day. "But we’ve never seen such a tragedy like this. Every room in the hospital is covered with blood."
Even now, nearly three decades later, the massacre is heavily censored in China, with authorities erasing articles and pictures of dissent from the internet and banning its mention in school textbooks.
China blocks popular sites like Facebook, Twitter and YouTube, fearing the uncensored sharing of images and information among the nation's more than 600 million internet users could cause social instability.
But Chinese censorship isn't always so rigorous and in the social media age, even the world's best censors can't silence all the people or stop their actions backfiring.
The Chinese government censors dozens of search terms ahead of the anniversary of Tiananmen Square on June 4.
As the government puts an enormous amount of effort into erasing the massacre from its history books, words such as "candle" and "commemorate" have been blocked from search results.
As a way around this, in 2013 dissidents came up with a creative way of remembering the massacre - by replacing the tanks with enormous ducks.
In the photoshopped image, taken from the iconic 1989 picture, a single man stands alone in front of a row of ducks instead of tanks.
Censors have also blocked the term 'June 4', leading some to refer to the May 35 instead.
Similar to the duck meme, this image also shows the iconic Tiananmen Square picture of the anonymous "Tank Man", but this time dissidents have replaced him and the military vehicles with children's Lego in a bid to get around censors.
Journalists trying to report on the trial of Xu Zhiyong, an advocate for increased government transparency, were manhandled and forcibly removed from outside a Beijing courthouse in January 2014.
Shortly after CNN journalist David McKenzie began reporting on the case, he was immediately confronted by authorities.
McKenzie told the authorities that it was a public street after one of the guards grabbed him and began yelling.
The situation escalated quickly, and the guards began pushing the reporter and tried to obstruct the cameras. Police did this with such force that one of the cameras broke.
The reporter was wrestled to the ground, thrown into the back of a van and dumped onto a street corner far off from the court house — all of which was caught on tape.
“They’re physically manhandling me. This is a public space, I am allowed to report,” he said, as police tried to corral him. Other journalists
, including Sky News’ Mark Stone
and BBC’s Martin Patience, were also reportedly “manhandled” while attempting to report at the trial.
Paula Bronstein via Getty Images
Umbrellas became the symbol of the Hong Kong movement after tens of thousands of protesters used them to shield themselves from pepper spray and tear gas fired by police in September 2014.
It was dubbed the 'Umbrella Revolution' and Chinese authorities failed to censor the term being shared online in the days following protest.
One month later and thousands of demonstrators opened their umbrellas in Hong Kong as a mark of solidarity.
Stephen Smith via Getty Images
Live-streaming services in China banned people filming themselves eating bananas erotically last month.
The move was the latest attempt from authorities to clamp down on "inappropriate and erotic" online content.
The nature of live-streaming makes it difficult for web hosts to monitor content.
Some people are baffled as to how the banana rules will be enforced, with others questioning what is deemed provocative. Cucumbers have been suggested as an alternative snack for hungry live-streamers.
Queen Elizabeth II was caught on camera describing Chinese officials as "very rude" during a conversation with Metropolitan Police Commander Lucy D'Orsi at Buckingham Palace.
The British monarch was overheard in May 2016 saying that Chinese officials were "very rude to the ambassador" during last year's state visit by President Xi Jinping.
News items referring to the incident were either blacked out or replaced by other footage across China, but that did not stop news outlets from around the world airing the clip.
A sex tape filmed in the Four Seasons Hotel with the skyscrapers of Shanghai’s Lujiazui financial district in the background sent the Chinese government into a panic last week.
Despite the tape being described as tame, pornography is banned in the Communist state and the video soon became a viral sensation.
Censors quickly tried to erase search terms from the internet but web users just became more curious about who the two people were.
People continued to circulate the video on WeChat, a chat app with nearly 700 million users and the video's popularity saw the stock price of Qumei Furniture Group, whose chair featured in the clip, soar by 10%.
Thomas Koehler via Getty Images
In May 2016, the chair of Germany's human rights committee, Michael Brand, was banned from China after he refused to take down comments about Tibet from his website.
Brand said that the Chinese ambassador had tried to put "massive pressure" on him to delete comments. He said that "self-censorship is out of the question", Deutsche Welle reports.
He asked the German Foreign Minister to issue a "clear response to this unspeakable action of an accredited ambassador in Germany."
Harrison Ford is among a range of Hollywood stars banned from China due to his support to Free Tibet.
Brad Pitt, Martin Scorsese and Richard Gere have also been banned from China for supporting the Dalai Lama and Tibetan independence.