Mack was murdered by a military death squad due to her criticism of the Guatemalan government's treatment of the indigenous Maya.
Change and catastrophe produced one of the world's most beautiful dances: The Dance of the Feather.
President Jacob Zuma called on South Africans to remember the 44 people killed at the Marikana platinum mine.
Cuban poet, writer, and national hero, José Martí, is buried in Santiago, which was also the home of the revolutionary hero Frank País.
You may not have known that the Riot Act was passed by an act of the British Parliament on this date exactly 300 years ago, July 20, 1715.
The manifesto urged nations to find peaceful ways to settle differences and to renounce the use of nuclear weapons, which only promised "universal death."
In 1415, Czech religious reformer Jan Hus, condemned as a heretic against the doctrines of the Catholic Church, was burned at the stake.
In 1976, speakers at a public program in Hartford, Conn., told the history and paid homage to the homosexuals exterminated in the Nazi concentration and labor camps.
Today marks the 200th anniversary of the defeat of Napoleon by the British Duke of Wellington and Prussian field marshal Gebhard Blücher.
On this date in 1215, humanity took one of its greatest steps in the long march toward democracy.