Coal tar is a thick dark liquid which is a by-product of the production of coke and coal gas from coal. It has both medical and industrial uses. As a medication it is used to treat psoriasis and seborrheic dermatitis. It is used by application to the affected area and may be used together with ultraviolet light therapy. Industrial uses include preservation of railway ties and improving the surface of roads. Side effects include skin irritation, sun sensitivity, allergic reactions, and skin disco
Hiram Revels, the first Black Congressman in the United States. Hiram R. (Rhodes) Revels was born on this date in 1822. He was a Black educator, minister, and politician, and the first African American to serve in the United States Senate.
African American Firsts in Congress. The first African American Member of Congress was Hiram Rhodes Revels (R-MS), who served. in the Senate in the 41st Congress (1870-1871). He also has the distinction of being the first. African American Member of the Senate and the first African American Member of Congress.