Chromium forms many colorful compounds that have industrial uses. Lead chromate (PbCrO4), also known as chrome yellow, has been used as a yellow pigment in paints. Chromic oxide (Cr2O3), also known as chrome green, is the ninth most abundant compound in the earth's crust and is a widely used green pigment. Rubies and emeralds also owe their colors to chromium compounds.
The debates between Stephen Douglas and Abraham Lincoln have been described as the most famous war of words in history.. The two men, the Democratic Little Giant and the Republican Tall Giant, met for a series of debates throughout Illinois.
Top 10 Greatest Speeches. Frederick Douglass. Born a slave in Maryland, Douglas escaped in 1838 and earned widespread acclaim for his 1845 autobiography. Invited to speak as part of July 4 festivities in his adopted hometown of Rochester, N.Y., the abolitionist took the opportunity to rage at the injustice of slavery.