Overdosing on niacin, also called vitamin B-3, can lead to rare side effects. The most apparent symptom of a niacin overdose is a blurring of vision, the American Cancer Society says. This can be a sudden symptom that is disorienting and frightening.
Capital Cities and Tombs of the Ancient Koguro Kingdom. Located in North-west Xiaotun Village, Anyang City, Henan Province, Yin Ruins is the first recorded and archaeologically-recognized relics as the capital city in Shang Dynasty.apital Cities and Tombs of the Ancient Koguro Kingdom. Located in North-west Xiaotun Village, Anyang City, Henan Province, Yin Ruins is the first recorded and archaeologically-recognized relics as the capital city in Shang Dynasty.
The Shang Dynasty (also called the Yin Dynasty) succeeded the Xia Dynasty, and was followed by the Zhou Dynasty. It was located in the Yellow River valley during the second millennium BCE. Map of Shang Dynasty: This map shows the location of the Shang Dynasty in the Yellow River valley. Jie, the last king of the Xia Dynasty (the first Chinese dynasty), was overthrown c. 1760 BCE by Cheng Tang.