In this spoken word piece, Elizabeth Acevedo addresses the beauty standard that is epitomized by fair skin and straight hair.

Why do we dance? African-American social dances started as a way for enslaved Africans to keep cultural traditions alive and retain a sense of inner freedom. They remain an affirmation of identity and independence. In this electric demonstration, packed with live performances, choreographer, educator and TED Fellow Camille A. Brown explores what happens when communities let loose and express themselves by dancing together.

Slavery has occurred in many forms throughout the world, but the Atlantic slave trade-which forcibly brought more than 10 million Africans to the Americas-stands out for both its global scale and its lasting legacy. Anthony Hazard discusses the historical, economic and personal impact of this massive historical injustice.

Although raised in a prosperous and prestigious African-American home in Tuskegee, Ala., Sammy Younge found himself drawn most to the civil rights movement. While the cause cost him his life, his actions and determination helped to transform this Southern city.

Regarded as one of the most important speeches in American history, it was delivered by Booker T. Washington as a plea for racial cooperation in the South during a time of deep racial prejudice.

In 1916, one family battled against the unjust laws aimed at immigrants of Japanese ancestry. In doing so, they lent their own voices to the growing chorus of Asian Americans insisting: "We belong here."

In Boston, widely regarded as the center of the abolitionist movement, black leaders called on citizens to resist the newly passed Fugitive Slave Law in 1850 in order “to make Massachusetts a battlefield in defense of liberty.”

“The Ponca’s challenge of the U.S. government marked a turning point on the long path of Indian resistance. Increasingly, after Standing Bear v. Cook, the fight for Native rights would shift from the battlefields to the courtrooms of the growing nation.”

Rigoberta Menchú has dedicated her life to fighting the injustices faced by the people of Guatemala and educating the world on the concept of indigenous people and fighting for their interests.