Aztec, New Mexico, UFO incident concerning the memo. In addressing the memo's context and possible connection to a hoax, the Bureau wrote, "Finally, the Hottel memo does not prove the existence of UFOs; it is simply a second- or third-hand claim that we never investigated. Some people believe the memo repeats a hoax that was circulating at that time, but the Bureau’s files have no information to verify that theory." The incident gave birth to the Aztec UFO Symposium, which was run by the Aztec, New Mexico library as a fundraiser from 1997 until 2011. Aztec, New Mexico, UFO incident The Aztec, New Mexico, UFO
Global silver trade from the 16th to 18th centuries the rest of the world, before experiencing another population boom. The new population boom was a product of the introduction of New World crops into China, mainly sweet potatoes, which could be more easily grown. By this time, the silver mines in Japan were largely depleted and the New World became China's primary source for silver. Initially, Japan served as China's primary source for silver in the 16th Century. In exchange for silver, China would provide Japan with silk and gold. Japan and China did not directly trade with each other, due to political tensions. This meant that European entities