Marconi Station, on the Atlantic side of the Cape's forearm, is the site of the first transatlantic wireless station erected on the U.S. mainland. Italian radio and wireless-telegraphy pioneer Guglielmo Marconi sent the first American wireless message from here to Europe—"most cordial greetings and good wishes" from President Theodore Roosevelt to King Edward VII of England—on January 18, 1903. The station broadcasted news for 15 years. An outdoor shelter contains a model of the original station, of which only fragments remain as a result of cliff erosion; parts of the tower bases are sometimes visible on the beach below, where they fell. The Cape Cod National Seashore's administrative headquarters is here, and though it is not an official visitor center, it can provide information at times when the centers are closed. Inside there's a mock-up of the spark-gap transmitter Marconi used. Off the parking lot, a 1½-mi trail and boardwalk lead through the Atlantic White Cedar Swamp, one of the most beautiful trails on the seashore; free maps and guides are available at the trailhead. Marconi Beach, south of the station on Marconi Beach Road, is another of the National Seashore's ocean beaches.
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