 In one cabin an intact sacrificed chicken on top of an egg was unearthed, adding evidence to the hypothesis that African slaves kept many of their traditions alive in North America.Archeologists also discovered evidence of an added-on porch to one of the cabins facing away from the main house, an atypical feature for a slave cabin, as owners and overseers constructed quarters to be within their view at all times.The slave houses were constructed out of tabby and built by the slaves probably in the 1820s or 1830s, although evidence exists that indicates two of them were inhabited by 1814.