The city of Atlanta, Georgia, in Fulton County, was an important rail and commercial center during the American Civil War. Although relatively small in population, the city became a critical point of contention during the Atlanta Campaign in 1864 when a powerful Union army approached from Union-held Tennessee.
Rare-earth compounds containing lanthanum are extensively used in carbon lighting applications, especially by the motion picture industry for studio lighting and projection.
1 It is sometimes regarded as one of the rare earth elements. 2  It can be found in rare minerals like wolframite. 3  It is 50th in order of abundance of the elements in the earth's crust.  Scandium compounds should be regarded as toxic and carcinogenic.