Almost all compounds that consist mainly of carbon can be considered organic, the exception being carbides, carbonates, oxides and cyanides, which are excluded for historical reasons.Compounds classified as organic can be further subdivided into specific classes based on their structures and side groups.
When Lincoln accepted the nomination for the Union party for President in June, 1864, he called for the first time for the passage of the Thirteenth Amendment to the United States Constitution, to abolish slavery and involuntary servitude, except as punishment for a crime.
When Abraham Lincoln became president in 1861, the United States faced the serious challenges of slavery and a possible civil war. Many doubted that American democracy would survive.