Glass harmonica Franklin and a fellow of the Royal Society, extended the experiments of Pockrich, contriving a set of glasses better tuned and easier to play. During the same decade, Christoph Willibald Gluck also attracted attention playing a similar instrument in England. Benjamin Franklin invented a radically new arrangement of the glasses in 1761 after seeing water-filled wine glasses played by Edmund Delaval at Cambridge in England in May 1761. Franklin worked with London glassblower Charles James to build one, and it had its world premiere in early 1762, played by Marianne Davies. Writing to his friend Giambatista Beccaria in Turin, Italy,
18th-century London 18th-century London The 18th century was a period of rapid growth for London, reflecting an increasing national population, the early stirrings of the Industrial Revolution, and London's role at the centre of the evolving British Empire. In 1707, an Act of Union was passed merging the Parliament of Scotland and the Parliament of England, thus establishing The Kingdom of Great Britain. A year later, in 1708 Christopher Wren's masterpiece, St. Paul's Cathedral was completed on his birthday. The first service had been held on December 2, 1697, more than 10 years earlier. This Cathedral replaced the original St. Paul's which