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
Bugle and trumpet calls of the Mexican Armed Forces Bugle and trumpet calls of the Mexican Armed Forces The Mexican Armed Forces have a number of bugle and trumpet calls for the different branches. Drums and bugles are used to signal the various calls for most units of the Army, Navy and Air Force while the cavalry trumpet is used to signal calls for the cavalry units of the Army, Army artillery units and the Air Force. Many of the calls and signals listed below are also used by civilian drum and bugle bands. The Mexican Army uses 129 bugle calls. Most are played by drummers and buglers in