The angle of the first diffraction order is typically around 30 degrees.
the first dynasty began around 3100 BC
Henry Wilfred "bunny" Austin was the first to wear shorts at wimbeldon.
Children typically begin first grade around the age of 6 or 7 years old.
The first television station to begin programming around 1932 was NBC. NBC stands for the National Broadcasting Company that is based in the United States.
A first quarter moon is 90 degrees from the earth and the sun. Therefore, it rises around noon. Last quarter moons are also at 90 degrees, but the 'other' 90 degrees, 180 degrees from the first quarter position. So last quarter moons rise around midnight. The moon always rises in the east.
The ideal room temperature for newborn puppies is around 85-90 degrees Fahrenheit (29-32 degrees Celsius) for the first week of their life, and then gradually decrease to around 80 degrees Fahrenheit (27 degrees Celsius) by the end of the first month.
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Around 70,000 BC when Greece was first populated
around the 1980s
I think they first came into history around 3000BC but they must have been around from before that.
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