Misc: Name Ladysmith Black Mambazo's chart-topping album of 1986?

Questions

Hyman L. Lipman of Philadelphia patented a pencil with an attached eraser?

U.S. 15th Amendment passes, guarantees right to vote regardless of race?

Frankie Laine, singer, born?

John Astin, actor (Gomez in TV Addams Family), born?

Amelia Earhart is first woman to make solo crossing of the Atlantic?