mr. william trent and all the other people who have lived here in taking care of the property. we've started from colonial times, revolutionary war times, to the present time. and this history is very important. things we cannot forget, such as slavery and the expansion of colonialism really brought about changes to this area and what we see today. traveledaff recently to trenton, new jersey, to learn about its rich history. learn more about trenton and other stops at c-span.org. americanatching history tv, all weekend, every weekend, on cspan3. >> in the spring of 1790, the first u.s. congress meeting in their second session engaged in a debate about slavery and race while considering a number of anti-slavery petitions they had received. up next, the history professor talks about the first congressional debate on slavery and race and argues this discussion which focused on congress's ability to interfere