From the 1490s when Christopher Columbus set foot on the Americas to the massacre of Sioux at Wounded Knee by the United States militia, the indigenous population of the Western Hemisphere may have declined by as many as 100 million. In Brazil alone the indigenous population has declined from a pre-Columbian high of an estimated 3 million to some 300,000 (1997). Estimates of how many people were living in the Americas when Columbus arrived have varied tremendously; 20th century scholarly estimates ranged from a low of 8.4 million to a high of 112.5 million persons.

Алсо, со словом "идиот" при вашей, как бы сказать, репутации, надо быть очень осторожным. Смешно звучит.