Cobalt is a silver-white, lustrous, hard, brittle metal that is chemically active and rarely occurs uncombined in nature. It is, however, often found in meteoric metal. Cobalt compounds have been used for centuries to impart a rich blue color to glass, glazes, and ceramics. The element has been detected in Egyptian sculpture and Persian jewelry from the third millennium BCE. The word cobalt is derived from the German word for "goblin." Why was the element thus named?
Back in the day
Mary Surratt was the first woman executed by the US federal government. She was hanged for conspiring to assassinate President Abraham Lincoln. Surratt allegedly delivered packages to the Surrattsville tavern that were given to John Wilkes Booth to aid in his escape. When prosecuted, Surratt maintained her innocence, said she knew nothing of Booth's plans, and claimed that her trips to Surrattsville had to do with collecting money owed to her. What has become of the Surrattsville tavern?
Born on a day like today
Khrushchev was the leader of the Soviet Union after the death of Joseph Stalin. He was First Secretary of the Communist Party (1953-1964) and Chairman of the Council of Ministers (1958-1964). He denounced the rule, policies, and personality of Stalin and oversaw many reforms. He was regarded by his political enemies as boorish, with a reputation for interrupting speakers to insult them. Before his removal from office, the Communist Party accused him of mishandling what event in 1962?