Leonids meteor showers (Nov 12-23 annually)
“The Leonids are a prolific meteor shower associated with the comet Tempel-Tuttle. The meteor stream is viewable every year around November 17 and is thought to be comprised of particles ejected by the comet as it passes by the Sun. When the Earth moves through the meteor stream, the meteor shower is visible. The Leonids get their name from usually making their appearance in or near the constellation Leo.
"The Leonids are famous because their meteor showers, or storms, can be among the most spectacular. They seem to follow a 33 year cycle, associated with the 33 year orbit of Tempel-Tuttle. Storms in peak years can feature thousands of meteors per hour; notable events were observed in 1698, 1799, 1833, 1866, 1966, and 2001.”
http://www-space.arc.nasa.gov/~leonid/meteor.html
http://www.leonidstorm.com/
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Source: Wikipedia
Leonids in Native American history and folklore
“During the last 15 to 20 years, archeoastronomy has uncovered much concerning the astronomical beliefs of native Americans. Unfortunately, the methods of keeping records of astronomical events were not as straight forward as those of the Chinese and Europeans, as there are no books lying around. Instead, the methods of record keeping included rock and cave drawings, stick notching, beadwork, pictures on animal skins and jars, and story telling‹most of which are not dateable.
“One of the few dateable events among the various records of native Americans was the 1833 appearance of the Leonid meteor shower. Historically recognized as one of the greatest meteor storms on record, it made a lasting impression among the peoples of North America.
“The most obvious accounts of the Leonid storm appear among the various bands of the Sioux of the North American plains. The Sioux kept records called ‘winter counts,’ which were a chronological, pictographic account of each year painted on animal skin. In 1984, Von Del Chamberlain (Smithsonian Institution) listed the astronomical references for 50 Sioux winter counts, of which 45 plainly referred to an intense meteor shower during 1833/1834. In addition, he listed 19 winter counts kept by other plains Indian tribes, of which 14 obviously referred to the Leonid storm ...
Much more at source
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