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The Imperial Towers were six of the earliest lighthouses built on Lake Huron by the Canadian government. The designation ''Imperial'' is not certain, but historians speculate that because the towers were public construction built under the colonial administration while Canada was a self-governing colony of Britain , the name would assure funding from the British Empire's Board of Trade. (Sapulski, Crompton). == History == In 1855 the Board of Works contracted with John Brown, a builder from Thorold, Ontario, to build eleven lighthouses and dwellings lighting Lake Huron and Georgian Bay between Point Clark and Christian Bay. In the event, only six of the towers were completed. These were: * Point Clark Lighthouse * Chantry Island Light * Cove Island Light * Nottawasaga Island Light * Griffith Island Light * Christian Island Light All six were built between 1855 and 1859; for the most part, their construction was simultaneous. Cove Island was the first to be lit, on October 30, 1858; Christian Island, the first to be completed but the last to be lit, began work on May 1, 1859. The locations of the towers were chosen based on known traffic patterns; each tower marked a prominent navigational hazard which was already well-recognized. Sites were also chosen based on their proximity to good anchorages. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Imperial Towers」の詳細全文を読む スポンサード リンク
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