Our Lady of the Angels School fire building as in the Great Chicago Fire of 1871. However, its interior was made almost entirely of combustible wooden materials—stairs, walls, floors, doors, roof, and cellulose fiber ceiling tiles. Moreover, the floors had been coated many times with both flammable varnish and petroleum-based waxes. There were only two (unmarked) fire alarm switches in the entire school, and they were both in the south wing. There were four fire extinguishers in the north wing, each mounted off the floor, out of reach for many adults and virtually all of the children. The single fire escape was near one end of the
Treaty of London (1871) of London of March 13, 1871, are maintained in all such of their provisions as are not abrogated or modified by the preceding stipulation." Treaty of London (1871) Treaty of London (1871) - international treaty signed on 13 March 1871 by Prussia, Austria, Turkey, Great Britain, France, Russia, and Italy. Foreign Minister of the Russian Empire Alexander Gorchakov on October 31, 1870 denounced the Black Sea clauses of the Treaty of Paris (1856). It violated art. XIV of the Treaty "It cannot be either annulled or modified without the assent of the Powers signing the present Treaty." In the London