"Tiananmen Square" is the English name for the event. The name in Chinese is the "June 4th Incident", much like 9/11 in English. Since the blog is in English,

"Tiananmen Square" is the English name for the event. The name in Chinese is the "June 4th Incident", much like 9/11 in English. Since the blog is in English, a "translation" might have been helpful; but since he goes so much into Mandarin, perhaps he assumes his readers are already familiar with the Chinese name.