Globalization and disease Eurasian diseases to the Americas was that many more native peoples were killed by disease and germs than by the colonists' use of guns or other weapons. Scholars estimate that over a period of four centuries, epidemic diseases wiped out as much as 90 percent of the American indigenous populations. In Europe during the age of exploration, diseases such as smallpox, measles and tuberculosis (TB) had already been introduced centuries before through trade with Asia and Africa. People had developed some antibodies to these and other diseases from the Eurasian continent. When the Europeans traveled to new lands, they carried
Bugle and trumpet calls of the Mexican Armed Forces the infantry bands and the engineers. The remainders are played by trumpeters of the cavalry and artillery. Drum and bugle calls are always performed by the Mexican Navy's drum and bugle bands, whether aboard ships or on land. Drum and bugle calls of the Mexican Air Force are used on the ground on airbases. 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