1863年颁布的《解放奴隶宣言》将奴隶制定为非法或不合法。

The Emancipation Proclamation, which was made in 1863, made slavery illegal or not legal.

林肯已经决定解放部分奴隶，并行之有效地对《解放奴隶宣言》的潜在反对者提出了警告：他们必须接受宣言作为拯救联邦的必要措施（这一事实）。

Lincoln had already decided to free some and was in effect forewarning potential opponents of the Emancipation Proclamation that they must accept it as a necessary measure to save the Union.

亚伯拉罕·林肯总统颁布的《解放奴隶宣言》使他们获得了自由。

Their freedom came from President Abraham Lincoln's Emancipation Proclamation.