Search an archive of public opinion polls from US and international polling firms since 1935 on topics such as social issues, politics, pop culture, international affairs, science, the environment, and more. Note: You must create an account to download the datasets. (Cornell University)
Search for statistics on topics related to American Indians, slavery, poverty, race, ethnicity, migration, health, crime, and more. Each are placed in historical context by a recognized expert in the field. (Cambridge)