The sun symbol of the Native American Zia Pueblo has four arms signifying the importance of the number four in their spiritual beliefs: four figures in the four cardinal directions, the four seasons, the four aspects of the day (sunrise, noon, sunset, and night), and the four stages of life (childhood, youth, adulthood, and old age).

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Singapore (Wikipedia) Singapore, officially the Republic of Singapore, is an island country and city-state in maritime Southeast Asia. The country’s territory comprises one main island, 63 satellite islands and islets, and one outlying islet. It is about one degree of latitude (137 kilometres or 85 miles) north of the equator, off the southern tip of the Malay Peninsula, bordering the Strait of Malacca to the west, the Singapore Strait to the south along with the Riau Islands in Indonesia, the South China Sea to the east, and the Straits of Johor along with the State of Johor in Malaysia to the north.

Raven, volume 9-10 (2002–2003) (nava.org) Raven 9/10, covering 2002 and 2003, appears as a special double issue, American City Flags. This milestone vexillological work contains 150 articles dedicated to descriptions and histories of municipal flags of the United States. The cities represented include the largest 100 cities in the country, at least two cities per state, and all state capitals.