Among students of Latin America, the existence of sizable Indian communities within the region has provoked a lively debate about the relationship between ethnicity and social class. Such communities have failed to become part of class society, it is often said, because they retain those customs and traditions which arose under colonialism, because in some sense they remain encapsulated to this day within the feudal social order. A few experts even claim that these customs have themselves become the primary agent of economic and political exploitation in various rural areas.1 According to this view, native people have accepted more or less passively a culture which was designed for them by Spanish missionaries and administrators, a culture which emphasized ethnic difference at the expense of class solidarity.2 In contrast to these ideas, contemporary events provide us with many indications that such people did not simply resign themselves to the fate which colonial authorities elected for them, Of primary importance, native uprisings and rebellions, messianic movements and religious heresies occurred in Latin America with astonishing frequency throughout the centuries which preceded Independence. By analyzing these movements, then, and particularly the convictions which moved their participants to action, we may formulate a more coherent view of Spanish colonialism — a view which also helps us to understand the question of ethnicity among Indians today.