Tricycle was the codename of both Dusko Popov and the network with which he was involved. Popov was despatched to the United States[?] by the Abwehr to gather information. Popov made contact with the FBI and explained what he had been asked to do. One of the items on their list was information about Pearl Harbor.
... Tanganyika and the Congo River
William Stairs, (1863-1892), Victorian explorer, discovered one source of the Nile River, first non-African to ever climb
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Abel Tasman, ...