Strange shapes and bright colors captured Charles Darwin's attention to dedicate a study to the adaptations of orchids, two years after his best-known work The Origin of Species (1859).

Various Mexican institutions commemorated the 158th anniversary of the Battle of Puebla, in which the Mexican Army, formed by peasants and indigenous people and commanded by General Ignacio Zaragoza, defeated what was then considered the most powerful militia in the world, the French.

Epidemics in Mexico: In the year one thousand, an epidemic of unknown nature swept away 90 percent of the population in Tula, Hidalgo. This information was released in a statement by the Scientific and Technological Advisory Forum.