Looking somewhat like a meteorite sitting on a pedestal, this stone is a memorial to the 1968 Tlatelolco Massacre. During the 1960s, and in 1968 particularly, massive student protests erupted around the world, from the United States to Czechoslovakia to Japan. Mexico was no different. In 1968, protests in Mexico intensified ahead of when Mexico City was set to hold the Summer Olympics. At the time, students were protesting the government and police violence after riot police and army personnel killed several students at the National Preparatory School in San Ildefonso…