Tiananmen Square protests of 1989 didn't challenge the legitimacy of the one party political system.
 That movement, spearheaded by Mao, caused severe damage to the country's initially diverse economic and social fabric
 As its size grew, the gathering gradually evolved into a protest, as students began to draft a list of pleas and suggestions (the Seven Demands) for the government:Affirm Hu Yaobang's views on democracy and freedom as correct

