Normally, the Classic period in Mesoamerica is characterized as the stage in which the arts, science, urbanism, architecture, and social organization reached their peak. This period was also dominated by the influence of Teotihuacan throughout the region, and the competition between the different Mesoamerican states led to continuous warfare.
The most common name for the killer virus, the Spanish flu, implied, of course, that it originated in Spain. Perhaps this was because there were serious outbreaks in both Madrid and Seville that infected eight million people in May of 1918 alone, even almost taking out the king himself, Alfonso XIII.
H1N1 was called swine flu because it was similar to the virus seen in pigs, as this photo illustrates. The WHO officially called an end to the H1N1 pandemic in August 2010, but cases with the strain still appear each year. It is likely that the 2009 H1N1 virus will continue to spread for years to come, like a regular seasonal influenza virus, the CDC says.