Glass harmonica the result would be musical cacophony. This modification also made it much harder to make the glass "speak", and muffled the sound. In 1975, an original armonica was acquired by the Bakken Museum in Minneapolis and put on display, albeit without its original glass bowls (they were destroyed during shipment). It was purchased through a musical instrument dealer in France, from the descendants of Mme. Brillon de Jouy, a neighbor of Benjamin Franklin's from 1777 to 1785, when he lived in the Paris suburb of Passy. Some 18th- and 19th-century specimens of the armonica have survived into the 21st century.
Paris in the 18th century Concorde. An attempt was also made in the late 18th century to improve the quality of street lighting. In 1669, under Louis XIV, the city was already lit with three thousand oil lamps, suspended in the middle of the street at a height of twenty feet, with twenty feet between each lantern, but not every street was lit, and the light was usually very dim; those going out at night or to the theater were usually obliged to hire a lantern-bearer to light their way until the end of the century. Between 1745 and 1769, the old lanterns were gradually