Globalization and disease Spanish soldiers introduced smallpox by contact with natives of the Aztec capital Tenochtitlan. A devastating epidemic broke out among the indigenous people, killing thousands. In 1617, smallpox reached Massachusetts, probably brought by earlier explorers to Nova Scotia, Canada.” By 1638 the disease had broken out among people in Boston, Massachusetts. In 1721 people fled the city after an outbreak, but the residents spread the disease to others throughout the thirteen colonies. Smallpox broke out in six separate epidemics in the United States through 1968. The smallpox vaccine was developed in 1798 by Edward Jenner. By 1979 the disease had been
Timeline of the Mexican Drug War starting point of the Mexican Drug War between the government and the drug cartels. As time passed, Calderón continued to escalate his anti-drug campaign, in which there are now about 45,000 troops involved along with state and federal police forces. "Note: To make the list more manageable, murdered politicians are listed separately in list of politicians killed in the Mexican Drug War, and journalists assassinated are listed at list of journalists killed in the Mexican Drug War. Other notable events in the ongoing conflict are included below." For 2007, the drug-related death toll reached 2,477. For 2008, the drug-related death