Reasons+for+the+Protest

What led to the events of Tiananmen Square?
(Up to 1976) ||= Mid Term (Up to 1988) ||= Short Term (1989) ||
 * =  ||= Long Term
 * = Social ||  ||   ||   ||
 * = Political ||  ||   ||   ||
 * = Economic ||  ||   ||   ||
 * = Religious ||  ||   ||   ||
 * = Military ||  ||   ||   ||