A guild provided security for the merchants
Answer:
The Cold War, which started after the Second World War and spanned 1947 to 1991 refers to a period of political unease between the United States, the Soviet Union and their respective alliances.
In that period, specifically 1962, the Light-Emitting Diode (which has variants of red, blue and green that can be combined to produce the most perceptible colours, usable as holiday lights) was as invented.
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Answer:
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