Castilla elastica Castilla elastica Castilla elastica, the Panama rubber tree, is a tree native to the tropical areas of Mexico, Central America, and northern South America. It was the principal source of latex among the Mesoamerican peoples in pre-Columbian times. The latex gathered from "Castilla elastica" was converted into usable rubber by mixing the latex with the juice of the morning glory species "Ipomoea alba" which, conveniently, is typically found in the wild as a vine climbing "Castilla elastica". The rubber produced by this method found several uses, including most notably, the manufacture of balls for the Mesoamerican ballgame "ōllamaliztli". The Aztec
Spread the Word to End the Word Spread the Word to End the Word Spread the Word to End the Word is a United States national campaign to encourage people to pledge to stop using the word "retard". End the "R" word advocates believe the use of the word “retard” in colloquial and everyday speech is hurtful and dehumanizing to individuals with special needs. According to R-word.org, "The R-word hurts because it is exclusive. It's offensive. It's derogatory." They advocate for the use of language that respects the dignity of people with mental disabilities. Advocates believe individuals with cognitive disabilities are capable of enjoying life’s experiences and