Territorial Changes of the Ottoman Empire 1817 - 1913
View a series of maps highlighting changes to the Ottoman Empire in green.
![Map of the Ottoman Empire Territory in 1817](/sites/default/files/styles/dynamic_stack_296_1x/public/2022-07/Territorial_changes_of_the_Ottoman_Empire_1817_800x600.jpeg?h=ccb565a9&itok=AN0JbOzo)
Doors to Opportunity
Read about the experiences of two young immigrants to the United States in the late 1800s and how race shaped the kind of education to each of them.
Racism and Intelligence Test Scores
Learn more about the history of intelligence tests and how test results were used to help justify discrimination in the 1900s.
The Changing Geography of the Ottoman Empire (1300–1920)
Maps showing the growth and contraction of territory controlled by the Ottoman Empire from 1300 through 1920.
The Changing Geography of the Ottoman Empire (1300–1920) (en español)
Maps showing the growth and contraction of territory controlled by the Ottoman Empire from 1300 through 1920. This resource is in Spanish.
“Emancipation” (1865)
Thomas Nast's celebration of the emancipation of Southern slaves with the end of the Civil War. Nast envisions a somewhat optimistic picture of the future of free blacks in the United States.
![Thomas Nast's celebration of the emancipation of Southern slaves with the end of the Civil War.](/sites/default/files/styles/dynamic_stack_296_1x/public/2022-07/1865_Emancipation_FH2125837.jpg?h=6ed13ab3&itok=UPAlxuxC)
Ferguson Social Media Posts
A selection of tweets from citizens and news reports in response about the events in Ferguson, Missouri.
![Peaceful demonstrators gather in Ferguson, Missouri, in the aftermath of Michael Brown’s death.](/sites/default/files/styles/dynamic_stack_296_1x/public/2022-05/2016_PeacefulProtestinFerguson_FH224149.jpg?h=c4842d71&itok=6lE2ICT0)
Rebecca Hamilton: Building a Permanent Anti-genocide Constituency
Rebecca Hamilton shares how she mobilized the Harvard community against genocide in Sudan.
![](/sites/default/files/brightcove/videos/images/posters/image_312.jpg)
United Nations Convention on the Prevention and Crime of Genocide
The Convention on the Prevention and Punishment of the Crime of Genocide, or the Genocide Convention, is an international treaty that criminalizes genocide and obligates state parties to pursue the enforcement of its prohibition.
![A photograph of several delegates who signed the UN Genocide Convention Credit: US Holocaust Memorial Museum, gift of United Nations](/sites/default/files/styles/dynamic_stack_296_1x/public/2022-09/Lemkin_Ratification_Of_Genocide_Convention_FH131485.jpg?h=6db1c67f&itok=hEICVT3F)
Negotiating the Convention on the Punishment and Prevention of the Crime of Genocide
Lemkin proved himself a relentless activist. He worked tirelessly as a lobbyist, a strategist, and an agitator, in order to establish the Genocide Convention with the help of the United Nations on December 9, 1948.
![A photograph of several delegates who signed the UN Genocide Convention Credit: US Holocaust Memorial Museum, gift of United Nations](/sites/default/files/styles/dynamic_stack_296_1x/public/2022-09/Lemkin_Ratification_Of_Genocide_Convention_FH131485.jpg?h=6db1c67f&itok=hEICVT3F)