Following his successful invention of the telephone and being relatively wealthy, Bell acquired land near Baddeck in 1885, largely due to surroundings reminiscent of his early years in Scotland. He established a summer estate complete with research laboratories, working with deaf people—including Helen Keller—and continued to invent. Baddeck would be the site of his experiments with hydrofoil technologies as well as the Aerial Experiment Association, financed by his wife, which saw the first powered flight in Canada when the AEA "Silver Dart" took off from the ice-covered waters of Bras d'Or Lake. Bell also built the forerunner to the iron lung and experimented with breeding sheep.