Population history of indigenous peoples of the Americas scope of the epidemics over the years was tremendous, killing millions of people—possibly in excess of 90% of the population in the hardest hit areas—and creating one of "the greatest human catastrophe in history, far exceeding even the disaster of the Black Death of medieval Europe", which had killed up to one-third of the people in Europe and Asia between 1347 and 1351. One of the most devastating diseases was smallpox, but other deadly diseases included typhus, measles, influenza, bubonic plague, cholera, malaria, tuberculosis, mumps, yellow fever and pertussis, which were chronic in Eurasia. This transfer of disease between the
Indigenous peoples of Mexico identity not linked to racial or ethnic identity was an aim of Mexican liberalism. In the late twentieth century there has been a push for indigenous rights and a recognition of indigenous cultural identity. According to the constitutional reform of 2001, the following rights of indigenous peoples are recognized: During the early colonial era in central Mexico, Spaniards were more interested in having access to indigenous labor than in ownership of land. The institution of the encomienda, a crown grant of the labor of particular indigenous communities to individuals was a key element of the imposition of Spanish rule, with