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 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