Obsidian is a kind of black glass formed when the heat of a volcano melts the silica material in sand.

VOA: special.2009.09.16

Professor Robinson says it is not clear when the first marriage between a black person and a white person took place.

VOA: special.2010.09.03

She said when white audiences saw her, they were busy seeing their own idea of a black woman.

VOA: special.2010.05.23

When the northeast sky turned black and threatening A storm was blowing over Iceland.

VOA: special.2010.05.08

Todd Duncan opened doors for other black musicians when he appeared in "Pagliacci."

VOA: special.2010.03.07

Rosa Parks and three other black people were seated in the middle area of the bus when a white person got on the bus and wanted a seat.

VOA: special.2009.03.08

Clemente,a black Puerto Rican, was shocked when he experienced racism in America.

VOA: special.2010.04.11

The Lady in Black looked at it. She remembered the wave of anger that had come over her when she had reached out her hand and silenced the clock that night three months before.

VOA: special.2010.05.15

" ...when all of God's children, black men and white men, Jews and Gentiles, Protestants and Catholics, will be able to join hands and sing in the words of the old Negro spiritual: Free at last! Free at last!

VOA: special.2010.04.16

"I think the one story that inspired this book was meeting a wonderful man called Don Mertin in New Zealand and he explaining to me how he had saved a species of bird called a Black Robin when there were just seven individuals left in the world of which only two were female and only one of whom was fertile."

VOA: special.2009.11.18

On that Sunday 50 years ago, and hundreds wounded when police fired into a crowd of 5,000 black South Africans.

VOA: standard.2010.03.21

And he had these jewels, well he thought they were black pearls, and he told his mom when he got home, he said,"Send those pearls to Mrs.Collum and her daughter."

VOA: standard.2010.05.31

When they take the field against Brazil Friday at Cairo's International Stadium, the Black Satellites, as Ghana's Under-20 team is known back home, will be aiming for their first championship after two previous unsuccessful final appearances.

VOA: standard.2009.10.15