In 1803, English chemist Smithson Tennant discovered osmium and which other element?

Britannica says which author's 1852 novel helped harden both pro- and antislavery feeling? British Airways retired its fleet of which supersonic jet in 2003? British Army Captain Thomas Preston was tried and acquitted for his part in which 1770 slaughter? Which British novelist, author of "Mrs Dalloway", was a central figure in the Bloomsbury Group? British commander Sir Edward Pakenham was killed in which battle, fought two weeks after the War of 1812 officially end… Which highest British military decoration for valor is named after a former queen? British forces captured which Georgia port city on December 29, 1778, and soon controlled most of the state? British General Gage said of a June 1775 battle, "The loss we have sustained is greater than we can bear." Which battle?