• Animated duck tribute above by Fizzdom.com
• "The Tiananmen Square protests of 1989, commonly known as the June Fourth Incident (六四事件) or more accurately '89 Democracy Movement (八九民运) in Chinese were student-led popular demonstrations in Beijing which took place in the spring of 1989 and received broad support from city residents, exposing deep splits within China's political leadership."
• "The protests were forcibly suppressed by hardline leaders who ordered the military to enforce martial law in the country's capital. The crackdown that initiated on June 3–4 became known as the Tiananmen Square Massacre or the June 4 Massacre as troops with assault rifles and tanks inflicted casualties on unarmed civilians trying to block the military's advance towards Tiananmen Square in the heart of Beijing, which student demonstrators had occupied for seven weeks. The scale of military mobilization and the resulting bloodshed were unprecedented in the history of Beijing."
• "The Chinese government condemned the protests as a "counter-revolutionary riot" ... Estimates of the death toll range from a few hundred to the thousands." (wikipedia)
• Watch the May 2014 Washington Post summary below of the 1989 Tiananmen Square protests.
• Chinese censorship bans all references (no matter how slight or obscure) to the spring 1989 protests at Tiananmen Square — such as the obtuse use of May 35 to mean June 4.
• Below is CNN's raw video of tank man's brave resistance. Shortly after this footage he was led away and presumably executed.
• "The crackdown left 500 to 2,600 dead, according to Tiananmen Square, 1989: The Declassified History, published by the George Washington University's National Security Archive. China's official death toll is 246." (USA Today)
• Additional resources:
New York Times: http://www.nytimes.com/2014/05/28/world/asia/tiananmen-square-anniversary-prompts-campaign-of-silence.html
Washington Post: http://www.washingtonpost.com/world/china-tried-to-erase-memories-of-tiananmen-but-it-lives-on-in-the-work-of-dissident-artists/2014/05/31/4fd55a8e-e720-11e3-a86b-362fd5443d19_story.html
The Guardian: http://www.theguardian.com/world/2013/jun/04/tiananmen-square-online-search-censored
The Atlantic: http://www.theatlantic.com/china/archive/2013/06/tiananmen-square-how-chinese-bloggers-play-cat-and-mouse-with-censors/276523/