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.
Word Origin & History. dance c.1300, from O.Fr. dancier, perhaps from Frankish. A word of uncertain origin but which, through French influence in arts and society, has become the primary word for this activity from Spain to Russia. Replaced O.E. sealtian.