When Joseph Priestley isolated "dephlogisticated air" in 1774, what did he see as the phlogiston which he had removed from the air?
What theory, developed by Franz Joseph Gall, in which personality traits were determined by "reading" bumps and fissures in the skull, was once considered a science?
When Alexander Litvinenko was granted asylum in the UK in 2000, following which he was assassinated, where had he been an officer?