1. Abolitionist literature in the 18th century was influential because it provided a complex view of slavery and its damaging effects from the perspective of slaves like Frederick Douglass and Harriet Beecher Stowe.
2. Frederick Douglass' autobiography was a thrilling account of his life as a slave that helped induce strong feelings in readers and challenged the institution of slavery.
3. The earliest definition of cosmopolitanism comes from the Greek philosopher Diogenes who said he was a "citizen of the world," establishing the idea of a single global community that inspires other concepts of cosmopolitanism.