Natural rubber at least showed promise as rubber sources, include the rubber fig ("Ficus elastica"), Panama rubber tree ("Castilla elastica"), various spurges ("Euphorbia" spp.), lettuce ("Lactuca" species), the related "Scorzonera tau-saghyz", various "Taraxacum" species, including common dandelion ("Taraxacum officinale") and Russian dandelion ("Taraxacum kok-saghyz"), and perhaps most importantly for its hypoallergenic properties, guayule ("Parthenium argentatum"). The term gum rubber is sometimes applied to the tree-obtained version of natural rubber in order to distinguish it from the synthetic version. The first use of rubber was by the indigenous cultures of Mesoamerica. The earliest archeological evidence of the use of natural latex from the
Stranger, Bear Word to the Spartans We... indeed in his old school: his own handwriting in chalk on the blackboard: "Stranger, bear word to the Spartans we..." The story was first published by Verlag Friedrich Middelhauve in 1950 as the title story in a short story collection. Today, "Stranger, Bear Word to the Spartans We..." is one of Böll's most famous stories and is one of the best known of examples of Trümmerliteratur ("Rubble literature"). The unnamed first-person narrator begins the story in a truck and is transported through a partially burning city that he cannot identify, and is also unable to accurately gauge the amount of