Colorado Minerals! Over 200 specimens of assorted minerals from throughout Colorado, ranging from sedimentary deposits to ore bodies to pegmatites. Colorado is one of the mineralogically diverse states in the U.S., and has always been a favorite among collectors around the world.
Argentine Tango -- A Brief History. The exact origins of tangoâboth the dance and the word itselfâare lost in myth and an unrecorded history. The generally accepted theory is that in the mid-1800s, the African slaves who had been brought to Argentina or their descendants began to influence the local culture.
Between the decades of the twenties and the fifties a dance style and song original from Cuba and the Spanish Antilles achieved great popularity and it was called Guaracha. There is an antecedent in the 18th Century, when it was created as a dance accompanied by a quatrain lyric.