The Reconstruction implemented by Congress, which lasted from 1866 to 1877, was aimed at reorganizing the Southern states after the Civil War, providing the means for readmitting them into the Union, and defining the means by which whites and blacks could live together in a nonslave society.
Private Knowledge DNA Sibling Test starting at $150 and Legally Admissible DNA Sibling Test starting at $255. Analysis of the DNA of two separate individuals can provide information as to whether they are full siblings, half siblings, or not related.
Here is my full sister and how much DNA I share with her as well as the number of segments that we have in common. Siblings are expected to share about 50% of their DNA --- my sister and I share slightly more than expected, just by random chance. Getting your siblings tested at 23andme is very useful because they will have DNA (and relatives along that DNA) that you do not have.