1960's - James Baldwin. A civil rights activist involved in the civil rights movement. In 1963, He was good friends with Harry Belafonte and other civil rights figures. Baldwin met with public figures to discuss the moral implications of the civil rights movement.
1 Certain genetic disorders, such as Down syndrome, are associated with an increased risk of leukemia. 2  Exposure to certain chemicals. 3  Exposure to certain chemicals, such as benzene â which is found in gasoline and is used by the chemical industry â also is linked to an increased risk of some kinds of leukemia. 4  Smoking. Previous cancer treatment. 2  People who've had certain types of chemotherapy and radiation therapy for other cancers have an increased risk of developing certain types of leukemia. 3  Genetic disorders. 4  Genetic abnormalities seem to play a role in the development of leukemia.
The exact cause of leukemia is not known, but it is thought to involve a combination of genetic and environmental factors. Leukemia cells have acquired mutations in their DNA that cause them to grow abnormally and lose functions of typical white blood cells.It is not clear what causes these mutations to occur. One type of change in the cells' DNA that is common in leukemias is known as a chromosome translocation.In this process, a portion of one chromosome breaks off and attaches to a different chromosome.he exact cause of leukemia is not known, but it is thought to involve a combination of genetic and environmental factors. Leukemia cells have acquired mutations in their DNA that cause them to grow abnormally and lose functions of typical white blood cells. It is not clear what causes these mutations to occur.