The property, located on the Northumberland Strait, dates back to the early 1800s and was purchased by Pugwash-born, Cyrus Eaton in 1929. In 1957, at the height of the Cold War, the first Pugwash Conference on Science and World Affairs took place here. Scientists from both sides of the Iron Curtain met to discuss the threat of nuclear weapons and the responsibility of scientists to work for their eradication.
In 2008, Canada’s National Historic Sites and Monuments Board designated Thinkers Lodge as a National Historic Site. A plaque commemorating the lodge and the historic event that took place here has now been approved and a celebration is being scheduled.