When the postwar boom began to dissipate in the late 1960s, Mexico's middle classes awoke to a new, economically terrifying world. And following massacres of students at peaceful protests in 1968 and 1971, one-party control of Mexican politics dissipated as well. The ruling Institutional Revolutionary Party struggled to recover its legitimacy, but instead saw its support begin to erode. In the following decades, Mexico's middle classes ended up shaping the history of economic and political crisis, facilitating the emergence of neo-liberalism and the transition to democracy. Waki.