Chatham was incorporated in 1712. Before then it was called Port Fortune and Sutcliffe's Inlets. On the Cape it's known as the "elbow."
Chatham used to have two lighthouses, the "Twin Lights," which were mounted on skids so they could move along with the natural shifting of the channel. They were built in 1808. In 1923 one of the two lighthouses was moved 12 miles north and became Nauset Light in Eastham. The remaining one was automated in 1982. It's 80 feet tall. The light keeper's house is now a Coast Guard station.
The average home in Chatham costs $1.3 million.
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