Slavery in America and the World: History, Culture & Law This collection, offered free by HeinOnline, brings together, for the first time, all known legal materials on slavery in the United States and the English-speaking world. This includes every statute passed by every colony and state on slavery, every federal statute dealing with slavery, all reported state and federal cases on slavery and hundreds of pamphlets and books written about slavery—defending it, attacking it or simply analyzing it.